Where should I start?

Hi, I'm currently 18 years and will be graduating high school this year. I will hopefully be attending university next fall and this is where I start worrying.

My parents have been jobless for a little less than a decade now, my dad used to be a VP for a software company that went bankrupt during the early 2000s. I have 3 siblings and they are all younger than me, although my parents aren't really stressing anything to us I can tell they are in financial difficulties.

I will be getting a student loan for uni, I don't want to give my parents more stress financially trying to help me with uni, that's why I have been looking for ways to earn money. I have tried blogging which doesn't work for me since I'm not the type of person that like to write about stuff. I did try CPA and PPD offers but I've made insignificant amount before getting my Youtube vids flagged by competitors in that niche (kind of a grey hat niche)

Right now I'm trying to learn objective-c and hopefully make an app within this school year before everything gets out of hand. I've applied to local grocery stores and recently found out about warrior forums. I've read a lot of threads about affiliate marketing, doing niche blogging and just IM in general. I have some experience in finding niches, setting up basic websites and such, but I have no idea what I should start doing.

Any advice would be appreciated.