I think that in discussions, people often opt too soon for an ad personam, instead of further exploring the topic at hand.
It is you who has refused to further explore what I suggested. You just wrote it off with a presumption that all such advise on building self-confidence is as useless as that which you do not appear to have made any honest effort at.
There is no ad hominem when you repeatedly demonstrate such a lack of effort on your part. Aside from posting here with excuses why any answers offered are no good, what effort have you put into determining what you believe for yourself?