17 entering want to learn how to manage money

hey guys i’m 17 and will hopefully be shipped out this july-october (E-2) for the air force ( what my recruiter says anyways.

BACKGROUND: i’ve lived low income my entire life, always enough to have food and a roof over my head, but never enough to LIVE. i’ve had EBT’s, SNAP, Free lunch and at one point was on housing assistance.

I have no problems saving money and can save without impulsively spending, albeit very small amounts.

I want to eventually put myself into a home by the end of my 4 year contract by using my VA loan.

What is the realistic amount of money i could/should be saving when I enter? Is my goal even realistic? What apps should I be using to track? Are there any hidden benefits that I should know about?

I know about tuition assistance and the credit waivers which i’ll be using as soon as i turn 18 to start building my credit.

any tips and advice is greatly appreciated