Body image

I’m a older teenager nearly an adults..and I’m intrigued as to how many girls feel pressured to look a certain way? I’ve spent years crash dieting..starving myself etc etc to try be the ideal body type and I never get there. I have been once but that’s when I was living off a packet of crisps and got diagnosed with an iron deficiency. Which isn’t healthy at all. How did you girls over come this? How did you let it not affect you in bed? And also if all these questions don’t apply to you..what other advice would you give me. I’m not happy with my body..the only time I’m SLIGHTLY ever so Slightly pleased is when I push my back out and keep my feet apart. Making me typically look smaller..but that’s not a natural position. If anyone could advise me..am I quite fat? Should I start losing weight? Am I perfectly normal?