I've been learning a little bit of Korean this past few months (three to be exact). I'm still a beginner but yes it was a fun experience, and i surprisingly learnt quite a bit.
If you are still a beginner and want to know where to start, I recommend:
Learning hangul first (Korean alphabet)- from youtube
You can also use the following sites to self study (very beginner friendly):
https://talktomeinkorean.com/ (talk to me in Korean) - this is the one i personally use
https://www.howtostudykorean.com/ (how to study Korean)
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I didn't even attempt to learn but I can listen/understand from all the Kdramas I've watched now. good resources tho