Isn’t a good thing.
I do think that we all need to be fairly introspective about our lives. It’s easy to delude yourself into thinking that you’re actually someone other than the person who you are. (No, I’m not going to give examples.)
Of course, the problem is that without talking to other people you have no idea if you’re basing your conclusions on reality or only on the things you imagine to be true. Telepathy would be an amazingly handy thing. Without that though, you can always investigate your own motivations for things you’ve done, think of better things, and then file them away for future use so that you don’t make the same mistakes a second time.
I used to always claim that you can’t move forward unless you know the past, but I’m realizing now that the past is as sticky as tar, so you need to figure out a way to keep the knowledge but shed the sludge.