How to be not insecure about your body?

Problem/Goal: Hi! How do you maintain to be confident with your body, kahit merong stretch marks, hyperpigmentation, maitim singit, dark underarms and many more when having sex?

Context: There's actually no problem samin with my partner, pero minsan napapaisip ako, hindi ba kaya mas attractive kung maputi yung inner thighs ko? Hindi maitim siko ko, ganon po.

Previous Attempts: I am trying products that could lighten those parts. I know my partner loves me but, I cannot help but to compare myself sometimes.