Scared to date..how do I boost my confidence ?

I’m 23 and have never dated before. I wouldn’t say I’m sheltered but definitely inexperienced and that makes me feel insecure. I never had a normal teenage experience due to a hard upbringing. I feel Intimidated and embarrassed by everyone else with lots of experience in dating and physically. I feel like I have so many dealbreakers in my personality as well (that cannot be changed such as health issues, pet allergies, etc) Any tips/advice?