I lack of confidence and also i'm very shy and quiet with strangers men don't find that much appealing tho, what to do?i don't wanna be single anymore.

Beg to differ: Men love shy women. However, if it is holding you back, think of a ssri. It will help.

Confidence: Not all of us are extroverts, but we all can find our niche where we shine and feel comfortable ; confident. Try spending your time doing what you love in group/community settings, and you can meet new people without feeling like you are being put on display. Maybe volunteering or joining a club/team/project... If you're enjoying what you're doing, you'll feel less shy ; can still be yourself.