Hey, we all have our own unique experiences and ways how we relate to our lives, other people and transition. The fact that You are overweight could be used for Your benefit, in fact. I would seriously advise starting to loose weight now and try to enter the HRT as close to "clean slate" as possible. First, it will test the strenght of Your desire to transition; secondly, You will be doing something - taking real and actual steps - instead of just waiting for therapy and hormones. Transition is NOT about starting hormones. It is much more complicated and encompasses every single little thing which brings You closer to Your true self - first and foremost, it means accepting Yourself for who You are. You can immense Yourself into "stereotyped" women things

, start learning makeup skills, do workout for that weight loss - as long as Your goal is to facilitate and enhance the outcome of Your transition - then those things count as transition too.
Finally, You know, I never hated my birth assigned gender too. There were fun things to do and I will have nice memories, along those not very nice ones too - but life is life. It just finally dawned on me that a male life was one big role-playing game and lies to myself. Besides, I really hated not being able to express my emotions - I was very emotional as a child, but teenage boys are not allowed that. Also, I am not transitioning because I need to or want to. I could probably shuffle it all back and pretend that it was an awkward phase or middle life crisis. But I am afraid not to transition, because I know how GD functions and I dont want to deal with it again and again when I am older and a lot of things have gotten more complicated.