I'm thinking of delaying college graduation on purpose to avoid becoming a real adult
Why would you delay college graduation?
I just don't want to become a man, besides that other things matter more
It's okay to be worried about growing up, but life isn't going to stop either. If someone paid for your school they're expecting you to graduate.
I just don't feel ready to become a real adult.
I understand that!  Becoming an adult can be really stressful, but it is inevitable so you should consider embracing rather than running from it!