Thank you all for your kind words and support. It really helped me a lot. And though these thoughts have since subsided a bit, they're still in the back of my mind a bit, but your encouragement really helped and I know I can get through it.

I saw my psychiatrist today and she was very empathetic, not judgmental, so that also helped; and I have an appointment with my therapist for a week from Monday to really talk it out. I think what I'm going to do is just try to organize my thoughts on paper so I can really go into detail with my therapist about it.

Sorry that OP was so long. These thoughts had been building up over the last year or so and really intensified within the last week. Thanks for being so understanding of everything. You're all awesome!