How to get confident

Ok so I've always thought low of myself. I've never found worth really. I feel like people kind of put me to the side. So I haven't really thought that I was good looking, good enough, sexy, etc. but I've been on a health journey for the past year and my self esteem has gotten way better, but I want to get that "sexy confidence" you know what I mean? Like know that you look great, feel great, and others are like "damn!" Any tips in like getting more confidence in that. I don't want to turn into a slut but I feel like girls need that confidence. I think it will help with my insecurities about myself and relationships with guys. 💕🙈