A combination of factors, actually. To start with, I cut one of my fingers and had to have surgery for it, which made me lose a month in classes while I recuperated. Secondly, there were a couple of subjects that I found myself to be "too dumb for", like programming.

I for the love of God, cannot understand how to program, or at the same speed necessary to do it effectively. Also I have problems with concentration and studying. At the same time, it seems like programming is the future. Everything is one way or another related to this, and me being not very good at it completely destroys my self-confidence.

Lastly, I felt like I couldn't be around work w/ electricity. I would live a life of daily constant thought of "I made this mistake and bam, I could be dead".

There are many more factors, but those are the main ones. Thanks for asking.