I've dealt with bed bugs before, can confirm that they're a psychological nightmare that exacerbates suicidality. Luckily, mine were not in my mattress or bedframe, so what worked for me was putting
traps under the legs of my bed and then removing my bed from
all other surfaces, including the floor, walls, wires, etc. It's particularly important to make sure that your blanket can't fall off during the night and touch the floor. This way, the only way for them to get onto my bed was via the traps, which they couldn't climb up.
Obviously this did nothing about the infestation, but it did stop the biting. It would be better to deal with them at the source, of course, but in my case I lived in an apartment complex and everytime I called my landlord they would just spray my apartment with pesticides, which didn't help because it was a building wide problem so then bed bugs would just come in from neighbouring apartments. I moved a few months after the problem started lol. I was very careful while moving and haven't had a problem since, though I still maintain precautions to this day.
This
reddit masterpost was a great resource I used at the time. Good luck.