Unrelated to yaoi..

15 is old to me, and I'm 15 (fuck)... I know I want to go into medicine, so yeah.

look I just follow my options and enter nursing college, I was upset and sad and after graduation, I had that feeling this is what i supposed to be coz it's my character and it suits me.

so choose the thing that you will be happy to work in even 10 years after!

Most people don't really know what they want to do with their lives as teenagers, and if they think they do, often change their minds later. I was sure I wanted to be a teacher for a long time, and entered college with Early Childhood Education and Psychology as my double major. I got part way through the degrees and completely changed my mind. I ended up going into healthcare instead as my main career, while doing some writing on the side. If you can enter college as undeclared and get your general education requirements started while you try to figure out what you want to do, that might be the best course for you.

I'm in my mid twenties and I still don't know what I really want to do career-wise. It's not easy to imagine what you'd still like 10 years from now. People say that if your work is your hobby, then it'll never be like a work, but that's the surest way to destroy your pure love for a certain hobby. Because work is work, even when you don't want to do it, you'll force yourself to do it. So I'd suggest to make sure that your choice is something you can still be passionate about even if it isn't your hobby, so that if you strive to keep doing your best & improve, even through hardship, you can make a more advanced career out of it and reap more life reward$.

A year ago. I'm now 19 yo. I always wanted to be a physicist. When i was 13 i bought a physics book with a funny cover and tbh didn't understand shit at first. Two years later i read it again and got so excited that i bought 6 more books and binge read them in two weeks. What made me excited the most was astrophysics and also how any researcher could make their own contribution to physics, doesn't matter if its small or not.I thought it would be easy for me to study physics and graduate, until the university entrance exams came. The score i got wasn't the actual problem, it was the country i was living in. I was most likely going to be unemployed at the end, so i "kinda" gave up. Now i am an engineering student, and i am attending my school's physics department's lessons in my free times ! And being an electrical engineer, i know i'll be able to do more than a physicist because when i graduate i will be an engineer with extra physics knowledge.
The thing is, don't feel like you have to decide. You don't need to have a dream job, no need to think hard about your future. Just try to think about the happiest and angriest/saddest moments of your life. This may sound chliche and random at the same time but this will help you find your way if you have nothing left to try. My happiest moments were my high school teachers supporting me to be a physicist and study abroad and the saddest one was seeing a kitty die. So, if i wasn't studying engineering i would be studying veterinary medicine because i hate it when animals get hurt and i would
do everything i could to save a life. Simple as that.
That was a long ass reply but i hope it helps

Hell im still not sure what I want to do w/ my life and I'm 32, but I am comfortable where I am now. I think I figured what college I wanted to go to during my senior year in high school, but I ended up not going to that college and I switched majors right before beginning college (they are similar). I had a basic idea, but I'm still working out the details.

A lot of my inspiration comes from what I surround myself with. Through that I've considered Religious Studies, Morals and Ethics Studies, Neuroscience, Behavioral Science, Behavioral Analyst, etc. I think the best option to discover your passion it to broaden your horizons, try out new hobbies, maybe watch some new shows. Honestly though, just about anything you are interested in can be turned into a career in one way or another.

Ahhh... youth! A high schooler, huh (jeez, I'm old enough to be your gran-...ah, nevermind that).

When did I know...? I didn't know right away, though some of my friends and classmates knew what profession they wanted to be in. I simply took the course that I felt comfortable with (not the brightest idea, I admit)... but got a job that was totally not related to it. I didn't finish college, since switching courses became tiresome. I got a job in sales to overcome my low self-esteem when it came to interacting with people - not a path for the faint-hearted (and please kids, do finish college if you have the option to - I got bypassed when it came to promotions several times because I didn't have a college diploma. I was still happy that those I trained went up the ladder, though). I switched careers several times and finally got to one that satisfied my insatiable thirst for knowledge, surrounded me with like minds as myself, and felt like a second home.

As already mentioned by some, most people don't know. Don't sweat it. Follow your heart and instinct. Don't be afraid to make mistakes - learn from it. It's the journey, not the destination that you'll enjoy most.

Just curious, do you have a specialty in mind~?

Don't be too stressed if you don't have it all figured out. Most people don't find a good match until further along in college. Even in college, many students will change their majors multiple times. A good way to learn if a career will suit you is to get involved in events/volunteer work related to careers that interest you. For example, if you want to get into veterinary school, volunteer at shelters or zoos. I wish you the best of luck!

Wow, thanks for all the replies guys! Yea, my big sis keeps telling me not to stress about it, as you guys have. I guess i'll just have to keep an open mind and move on ^_^
Oh and @Shiragiku - I was thinking of either Computer Science or Law maybe...

Computer Science is awesome~ coding jokes, lol.