Scared Of How My Future Will Turnout....Please Read I Really Need Advice

Im 17 and graduated high school last month ...since i graduated ive kind of hit a bump in the road of what to do with the rest of my life because i dont live in a financially stable household and i dont have reliable transportation to get where i need to go all the time....i planned on going to college but things didnt workout the way they should have with me getting a scholarship and financial aid so my only other option was joining the air force and im scared that if i put off going to college for it i might make a really big mistake because i may not end up qualifying for it or punk out during basic training ...i also have a hard time contacting recruiters and i really hate bothering people all the time but sometimes i just dont have a choice but ive completely stopped relying on people for things which hasnt really made anything better....ive been working out every day and taking practice asvab tests but im still not confident i will make it in ...i also worry about my mother because shes a single parent and shes all i really have right now and with the way things are i fear something will happen to her while im away and i wont be able to protect her.....im going to be 18 in a few months and im honestly really scared because i dont know everything i should know like basic common sense things that most people know like bills,working, and etc.....i never learned how to prepare to be an adult and with things are going now i fear that im going to end up in the same position as most of the people in my family not wanting to do anything with their lives,living off of government benefits, sleeping with people for money,food stamps and so on ....i dont want to be like that....its enough people in my family who have talked about me like a dog .calling me stupid and saying i dont have common sense and im going to end up just like my mother and i just want to prove their asses wrong but it seems like no matter how hard i try and pray nothing good happens to me but i see how good things happen to people who dont deserve it and it just comes so easily to them.... Im called lazy because there is really nothing i can do right now besides sit at home all day and do nothing abd my mom wont let me work idk why because she struggles with the bills but its just all too much .can someone please give me some advice????