I did it for four years. What I did was a lot of soul searching, what's wrong with me (Had/have a lot of theories) and what I can I do to make it better. Ironically I think not talking was a solution to one of my other problems (If I don't say anything no one can make fun of my voice and what I say was my reasoning I think, among other things) and didn't become a problem itself until later on. I did think I was alone, lowest human being on the planet (more self-esteem problem I know). So at first not talking was a coping mechanism for me. Later on I would focus on other things I thought were to blame and fix those parts, stop doing a certain thing. But I guess in short to cope I just didn't talk whenever possible unless I was comfortable. Avoidance. Oh and Fiona Apple music, helped me know someone else felt the exact same emotion as me. (I have listened to criminal at least 5000 times.)