weight gain 😭😐🙄

So I use to be really skinny like stick skinny and now I'm older and I've gained some weight . Don't get me wrong I'm still small but everyone knows how skinny I was so now it's bugs me when people mention my weight gain 😒. I can't  really motivate myself to work out tho! And all my friend Are so far from me .. I love my curves cause now I actually have a butt and I don't want to lose it but I hate having a belly idk what to do to motivated myself . I literally argue with myself everyday . Any ideas !?