The moral, I left college and went back when it felt right. Lucky for me it felt right in my 20's and I didn't waste too much time dicking around. Maybe that's what it will be for you but my issue was not being lazy, that is a trait I simply do not possess. Hopefully you grow out of that because it won't really be useful in the years to come.
Good luck.
+1
My story is almost identical to this one. Not everybody has to go to school at 17 or 18 and promptly finish in four years. There are so many options besides that path.
College isn't high school so there's no race to finish and get out along with your peers because you are on your own and you write your own ticket. It's a fun, but also sometimes hard part of being an adult.
I was torn between music and school so I did both but at different times. I got about a couple of years of school out of the way only because I felt I needed that but was always wondering "what if" on the music side. I did manage to get a minor radio hit and later play a lot of live gigs. This culminated in seeing my favorite band live and after all that I went and finished a couple of degrees. When that was done, and when I found out that it's not always that much about college being related to work, or to life, I returned to music. I wasn't able to thoroughly enjoy school until I gave music a try and I wasn't able to thoroughly enjoy music until I got the school out of the way. I always felt jealous of those who did one or the other and had no doubt which way to go, but after it's all said and done I did both even though many in both my lives doubted it very much and were often no support.
Time is on your side and you are young and maybe finish up a semester, even with bad grades, and return to that after you have given music a fair try. When you get some music, or a lot of music, out of your system you can always return to school if you like because those completed units are not going to go anywhere.
There's nothing worse than giving both half a shot and being 30 or 40 wondering what life would have been like if you did one or the other. We are in a free country so by all means do both.
I hope this helps.