Tell me why I should join the Air Force and what good will it

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(Already posted about this before, some of you may already recognize this)
>21
>Living with parents while I go to college
>For some fuck-all reason my little brother (16) does the stupidity of getting majorly stoned 3 hours before he and my family went to a trip to mexico for vacation.
>My mom is planning to check him in to a rehab/counseling center for a few months because he's been a major pain to my parents' marriage.
>This means Older brother, grand-mama, and I are stuck by ourselves until family comes back until december

I'm certain that my older brother could get a job. Financially speaking, my family is fucked.

I've considered enlisting in the air force, and I have come to accept it. But as of recently, I've began to have cold feet about it. Like, I'm starting to think that this isn't a smart choice.

What good will come from me enlisting in the air force, and how is the military daily life like?