I think Wayne has a good point. I'm alone a lot and sometimes find I can overwhelm people when I do talk to them. I think some of it is lack of practice in daily communication.

I was also a compulsive apologizer until very recently. What stopped that habit for me almost cold turkey was seeing a short video of the comedian Louis CK apologizing over and over again for about two minutes. When I saw it, I could see how annoying it was for other people to experience that. Now when I start to say "I'm sorry" or write "I'm sorry, I do a mental check if it is really needed and now 9/10 it isn't.