What is the best self esteem boost ?

I am young, 17, in a very happy relationship with a guy that I’ve known for 6 years and have been officially together for a year & a couple of months, we have not done anything until a month before our year is when we tried over the pants things and now going further most ever done is dry sex still clothes on but I can be really insecure of my own body. he makes me feel like the most beautiful person in the world and I know a lot may think “ You are young life won’t end, typical dramatic teenager” but it’s more than that I used to be happy with my body even as it was never the best ,but I went trough a trauma that left me in shame of my body there is amazing communication between us & but, as things get heated clothes like to come up and show everything *not nude*he has an amazing body & I am a little chubster. I know he loves my body as he always tells my but I don’t feel the same way about myself I just need to know on things to make me feel beautiful not only when he tells me ,but for me feel it myself.