Jayne,
I'm sorry that your depression's been acting up. I've been dealing with it myself lately as well, albeit for different reasons. Mine was triggered by the fact that I'm now unemployed: The need to network sets off my social anxieties, and having to sell myself to potential employers runs headlong into my self-worth problems. It leaves me feeling really hopeless.
Anyway, I know what you mean about feeling like things are taking forever. I'd be furious about being turned down for electrolysis three times due to clerical errors. I'd try to track down who screwed up and really get after them. It's one thing to make a mistake, but to screw this one thing up this many times starts to sound like incompetence. Was it the same error all three times?
I've never been good with kids, and have never wanted them myself, so I have nothing to add about problem 2.
Problem 3: I can relate to this so hard. I'm terrified I'll never meet the right person for me, and whenever I think about it, I get really depressed. In fact, I've spent years trying to avoid anything romantic, because I just feel worse about myself afterwards. This topic has come up a few times with my therapist, who's described my avoidance as an attempt to protect my heart. I'm hoping the reason I've had so much trouble finding people is gender related: I relate to people the way women do, yet I've been expected to act the way men do, which as you know is really confusing. Still, I feel ya. Finding someone you'd be perfect with, only to have them be already taken. That hurts.
I wish I had some useful advice to give. The best I can do is commiserate. Hang in there, Jayne.