Suggestions on change in fashion sense. Is it too old fashion. Weight loss?

I wear kurtas like this being in DU. Ya first reason parents don't allow those cute clothes. Secondly I feel im too fatty to wear those. I weight 64 at 5'2 height. 21F. Do you guys have some suggestions on how can i reduce weight and what clothes I can buy - a little cheap but also good. Not too much revealing

Its me.