Does size really matter ?

Ok this can be answered by either , how important is it to you and for confidence. here's why i ask. i am in therapy for chronic depression and we find that a lot of my issue are related to my confidence in my relationship i had with women i have dated and been intimate with. I know the old saying size doesn't matter, but most of the time its coming from guys who have no problems in that department. Or that money isn't everything and can't buy happiness, but they never try stepping over to the other side and saying that. Well enough ranting, it turns out that the majority if not all my self efficacy and lack of confidence can be traced back the my small appendage south of the boarder.....so there it is boyz and girlz i would greatly appreciate your constructive answers and criticism. And if you can tell me what have you don't to deal with a problem like this if you have encountered it. Also if you know for sure or from experience if any of the so call enlargement devices or pills really works............thanks Tiny Tim