Having time to time issues with my social anxiety

Every time I step in public place I get fear. The fear of getting embarrassed. The fear of failing. The fear of getting rejected by a person etc.

I cant help it. Im trying to hard to be perfect, to make no mistakes because if i do so then it will haunt me for the rest of my live. I wanna make friends but its so hard to do so. I dont wann embarrass myself if front of them.

All these thoughts are coming and going and its tiring because i wann live a live without having any doubts. I wanna be more confident...but how? No matter how hard I try I fall back into my old habits and thinking. I just wanna be at home all the time. Thats my safe place where I can do whatever I want without being jugded from others.

Anyone who could give me any advices or is even experiencing the same as me?