I wanna draw a manga just for fun and for my friends to read but my art sucks, what do you think /a/
Keep practicing anon and keep your mind set on a goal and nothing can stop your dream.
Yes your art sucks.
Pick up a copy of Michael Hampton's Figure Drawing: Design and Invention as well as a copy of The Atlas of the Human Anatomy for the Artist. Likewise, watch the way people around you walk and how their body contorts and changes to suit their environment.
Study scene composition in tandem with the people watching.
if you are good at comedy, it might just work with your current drawing skill-set. Drawing well takes a lot of practice as you can imagine. Keep at it. Start from still life sketching and work on stylizing them.