Just to add some color to your comment as I think the idea that philosophy can be therapeutic is counterintuitive for a lot of people: consider the loneliness of depression, a big part of which (at least for me) is the seemingly insolvable problem of being trapped in my own head. "No one else could possibly understand how I feel" seems to be true not even just for me, but for the human condition. We're not mind-readers.

Nonsense, Wittgenstein seems to argue. If no one else could understand how you feel even in principle, then neither could you. If you can talk about it then people will understand, because we use the same words the same way. And when we don't, it's not because of some kind of epistemological solitary confinement - it's just a misunderstanding, and there are language games for resolving those too.

You don't have to read philosophy to know that "no one else could possibly understand how I feel" is actually a common sentiment, though. The truly therapeutic part for me was the idea that even though there may be problems that can't be solved, they can sometimes be dissolved. (i.e. seeing the problem statement itself as nonsense)