I'm really sorry to hear about school! For what it's worth, I didn't do that well in school either, never cared about it much.

I tend to agree with your mom, I think you should take a trip to the PDoc just to check everything out and maybe adjust meds.

There is always long sleeve options at places I have worked. Or if there wasn't they've allowed an undershirt. I've also known former self-mutilators who have worn compression stocking over their arms at work. The particular woman I am thinking of told our boss she had a previous burn and surgery, requiring their use.

Don't give up! I hope things get better. Good Luck.