I should have tried harder in school

I think it never really kicks in how much harder you could have worked until it's too late. I mean I just took the SAT for the first time last month and it's crazy how much more I could have prepared for it. I mean I worked my ass off freshman and sophomore year but this year I feel like I couldn't care less. Yeah, junior year, the most important year is the year I stop caring. Super smart. I'm probably going to have to actually focus senior year (which is going to be even harder)  to get into a decent college. Shit. Highschool sucks