Insecurities

So lately I have been feeling very insecure about myself. It's like ever since this guy told me that nobody likes me and stuff it really hurts. Last year, I saw that everyone liked my friend and I tried to live up to her standards because i wanted everyone to like me. I am still insecure about myself but not as much as before. All the guys like my friend and it makes me feel ugly and jealous that she has it all going good for her.