CA at 20, other's experiences?

Anyone else have experience with this? I started drinking on and off when I was 13, immediately began craving it. Onto highschool, within the second half of my freshman year I was bringing fifths to school, drinking first thing in the morning, and finishing them off in a few days. Consumption steadily goes up (especially while I was homeless from 16-19, it was the only thing that made me feel good and I did a lot of shitty stuff to get liquor) and today I am drinking about two fifths a week after realizing I can't afford more than that with my job and bills. I usually always drink alone, my fiance will be sitting with me or we'll be watching a movie or something, but he almost never drinks. I never drink before 9pm but I can't sleep without at least 1/4 a fifth in me, I end up waking up all night and sweating like a hippo all night. I literally soak my bedsheets if I don't drink before trying to go to bed.

When did you all start?