I'm terrified that I'll still hate my body if I lose weight
Why would you still hate your body?
I'm not confident with myself because my legs are too short
It is okay to have some things that we are self-conscious about, but it is great that you lost the weight. Now you can be a healthier person at least.
I don't know if I can keep going like this... I'm still depressed with my body even with the weigh loss.
Weigh loss is not about being attractive it is about being healthy and feeling better. You will appreciate it more when you are older and your body doesn't hurt as much. You should seek help to feel better about your attractiveness.