Replying to High school is a joke

Don't take what I'm saying here too seriously but I'm just expressing some thoughts that have crossed my mind.  High school was the biggest waste of four years I've ever experienced.  I find it funny that most of my teachers always talked about being prepared for college and how everything I was doing back then would prepare me.  I took mostly AP classes in high school, (AP calc, stats, us gov, chem, etc.) and I did absolutely nothing, I would show up most most days though so I wouldn't have to do community service (roughly 80% attendance), and every time I got assigned homework I would do it ten minutes before class and since high school was such bullshit I would get an A on it, I would spend about 10-20minutes a week on HW, and when tests rolled around I would just pull out a c or b and wind up with good grades at the end of the term.

Doing literally almost absolutely nothing for four years got me a full tuition scholarship to the U, and I went through the first year of college doing the same shit and pulled a 3.5 because I took general credits.  But now in my 5th semester of engineering I'm struggling so bad to try and pull c's, I can't get out of my fucking habits that high school gave me, I just can't do fucking homework.  I know it's my fault but I just think of how fucking stupid high school was ,I remember getting in trouble because I stopped showing up to HS for awhile because it was so pointless, and such a waste of time.  If you had too many missed days you would get community service which is bullshit, even if they were excused.  I could have done so much great stuff with that four years ( I did have good times, but class was very fruitless).