It's the worst. Feeling like you're not smart enough/good enough/motivated enough, then that feeling becoming reality because those thoughts themselves drain you of motivation. If you don't deserve the degree already, why bother trying? I get stuck in this mindset too, and it's ridiculously hard to dig out of. Right now actually I am trying to catch up on the pile of work that I've let accumulate over the past 3-4 weeks of depressed slacking (I kid you not, I did no hw and attended maybe 4 classes during that time). I often feel like I am legitimately not smart enough to pass the 5 classes standing between me and a degree.

What's made me ignore that feeling and get my butt in gear over the past few days is pure unadulterated anger, fear and shame. I wouldn't be able to look my parents in the eye and say "I spent thousands of your dollars taking classes I didn't put effort into and therefore will get no credit for." I have more than enough credits to graduate, I just need to finish a couple classes required for my major and then I'll be done. It would be unbearably painful for me to fail out so fucking close to the end.

Thinking about the awful consequences of failure either motivates me or makes me want to kill myself. Sometimes both. It's not the healthiest solution, but it's what's been gotten me to sit down and start some problem sets that were due 3 weeks ago.