I'm in a similar situation to the OP. For me personally it's really difficult to "think my way out" of these sorts of problems. First they're large intertwined

I'm in a similar situation to the OP. For me personally it's really difficult to "think my way out" of these sorts of problems. First they're large intertwined problems, second they're existential in nature, and third as you get older time becomes a huge factor. It's a vicious cycle really. Everyone has some idea of what they want out of life and whether or not they are "on track" to attain it. The further behind you are, the more this leads to increased depression, anxiety, anger, etc. At that point it's hard to effectively think or do anything at all, so the situation deteriorates further. Sometimes something works out; you get a girlfriend, you get a good job, whatever it happens to be. You start to feel like you can make a come back, you start making progress turning your life into what you want it to be. The problem is if that initial pillar gets knocked out from under you (break-up, laid off, etc) things can go down hill really damn fast; I know this from experience. You're right that largely speaking no one cares about a person having depression, or rather people say they care but their actions rarely line up with their words. That can be a very self-destructive realization though, because often times help is what you need. Some people can push past these adversities seemingly without issue. Others like myself have a much more difficult time with it. Perhaps "thinking through" the problem is the problem, maybe that leads to analysis paralysis. Maybe that's why those with higher IQs have this problem. I honestly have no idea.