I feel terrible.

Tonight at night school we started covering moles and molar mass (grade 11 chemistry). The teacher didn't give a very in depth explanation of how to calculate these things. I had completed part of this course through correspondence a few years back, but it was like learning it again for the first time.

I feel stupid, like I should know this stuff. I know this is just one of those useless human emotions, but I can't shake the feeling.

I spoke to my mother about taking on more courses at a time in order to re-enter university by next Fall. She was concerned that I would not be able to handle it. She's probably right, which makes me feel worse. I haven't been able to complete a course in years; I always let my mood get in the way.

Am I just really weak-willed? I've heard of/spoken with numerous people who were able to keep going, be productive, despite suffering from depression. They kept on working anyway. I really don't know how they did it. Whenever my mood drastically lowers, I just cannot function. I can't even contemplate doing some of the simplest things, like brushing my teeth, let alone getting to class.