Early 20s college students HELP

So I need advice from early 20s college students.

Im getting a potentially seasonal job but if I keep it I can support myself.

HOWEVER if I get let go after season then I’m probably going to have to go into the service and I don’t want to.

IF you’re a NEW college student in your 20s how do you survive? How much do you make an hour to be able to live and go to school? Do you live alone? How much is your rent?

My dads saying because the job is most likely seasonal I eventually won’t be able to support myself and all that leaves left is the service. (Air Force). He says I’m to far behind in school compared to people my age. That people my age are already finishing their degree by the time I’m starting mine.

That because I’m so far behind in order for me to BE SOMEBODY I’d have to go into the service. Not that I wouldn’t be successful without it, I’d just be older and it’d be more of a struggle.