Not feeling sexy..

Hey ladies! So my guy and I have been together for almost 2 years and he is very confident in his sexuality whereas I'm the opposite...Seriously struggling with feeling sexy and confident in the bedroom..I've tried lingerie but I'm not 100% confident in my body just yet it's a work in progress. 
Do any of you have any tips as to becoming more confident sexually and not taking myself so seriously? I feel like my insecurities are ruining our sex life! 
Xo