In my opinion losing fat at any time is important. When you go on HRT your current fat will not translocate to the 'female' areas. You will just get more fat

If men really want to make themselves look like idiots they can say to their girl, when she is talking about dieting, " yes but girls have an extra layer of fat due to estrogen"

Goes down like ' you are only angry with me because you are having your period.' Both really good reasons for enforced male sexual abstinence until a lot of groveling has occurred.

Just my suggestion, try aerobic exercises, if you are presenting go to a gym and do some classes, great way to meet people. And you have to start somewhere! You don't want to build muscle tone at the moment, but you want a nice body so when you get 'distribution' to the boobs and hips it looks nice.
Good luck doll

Cindy