Unfortunately I have poor life experience even if I'm 28. Social isolation and social anxiety made me act like a doormat when interacting with others. I'm friendly and smiley just because I try to be liked by other people and not be seen as danger.

At work I couldn't get my job done by.myself and even if I'm an hard worker I always made simple mistakes.

I act childish and naive just to make others help me, I never reply when people try to belittle me and if I do it I'm.too docile and quiet...and I'm not taken as serious.

With older man I feel like I'm a kid who's interacting with adults and it seems like I can't be aggressive I'm not quick at fighting, I just stand there acting well mannered and polite like I need to always be humble/nice guy. What to do?