Well!
Weight loss is a simple equation:
less energy in + more energy used = less fat.
So how?
Stop sugary drinks totally - no soda, no coke, no pepsi etc. fruit juice with no sugar. I only drink mineral water, because I like some fizz. Remove processed foods from your diet; eat veggies preferably raw or at least not overcooked. Cut out bread. Get rid of take away food or 'instant meals' no matter who makes them.
Exercise. It's is easy - walk! Never use the elevator use the stairs. Walk to the store - or get a bike and ride.
When your legs get stronger, jog. I now go for a run every morning at 6.15 am. It is great! Fresh air, people smile, I'm alive and the day is mine.
No booze, or at best a glass of wine every now and again, and I don't mean every 20 minutes!
Motivation is the key. I wanted a body I was proud of. I wanted to look awesome in a dress. I wanted people to stop eating their dinner in the restaurant as I shashyed across the room. I wanted to see lust in mens' eyes and jealousy in those of womens'.
I'm by no means attractive. But I get those looks nowadays!
(OK I'm now a gym junkie but that came with time.)
Transgender people are so lucky - we get two goes at life: looking like our natal birth gender and looking like our affirmed gender. We can't choose the first but we can the later!
Join in the weight watch group on the Forum for more motivation.
You can do this!