Can i find all of my comment ?

If you go to homepage (on phone) an go to the bottom of your page to will find all your followings and comments

Yes ,just go to ur homepage and click on topic and u will see all

If you're referring to replies to posts, then no.
If you're referring to the posts you posted in the manga comment section, then here it is http://www.mangago.zone/home/people/265125/comment/

oh i never go to bottom lol Thank you guys <3

So, you’re a top?