Insecurity

I had a guy(not my current boyfriend) tell me over a year ago that I have big forehead....my whole life I’ve never noticed, until he pointed it out. Now its all I see. I don’t even take pictures any more or if i do i head my forehead or I hide my face in generally. I look at pictures my boyfriend takes of me and I want to cry because it’s all I see. My hairdresser told me that bangs won’t look good because I have a little cowlick (idk if it’s spelt right) so i have to look at it everyday. I just fill so i were my bangs would go.im so insecure and I know it hurts boyfriend seeing me get so upset. I just don’t know what to do :(