Hi eelsauces,
Many transmen use testosterone for awhile before having top surgery done. Doing so helps to shrink the breast tissue.
Also, being your ideal weight can help the surgery outcome.
Exercises to build chest muscle can also be very helpful.
Do you have any professional guidance?
Getting used to testosterone can take some time. Adding testosterone can affect anyone emotionally. Starting testosterone (T) is a big step within itself.
I hope this helps.
WC