Just apply yourself to something you enjoy and research it has a "future", network, don't shy away from "lower" level work. You can work you way up (many will say you can't, but you still can). Don't be afraid to fail.
Both my brother and I both have just HS diplomas pretty much were in the same spot as you when we were younger. We hated school pretty much, only went for sports. We both tried college a bit, dropped out after barely 1 yr. Entered the workforce, and we're both doing fine.
He works in the manufacturing area, and I work in IT support in the financial sector. We both make comfortable enough salaries and low stress jobs.
What i mean about not shunning low level, low pay work... both my brother and I started our "career" at just about $10-12/hr. HS diploma + barely above minimum wage, and over twenty yrs old... seems bleak right? For both of us, the raises came as with promotions... and we're both pretty comfortable where we are now. (I personally would refuse more pay + responsibility now, and have... free time is just more important these days).