Well speaking about health risk. Being trans both op or non-op are facing more health risk. Not that getting op and you will have lower risk. The common things that both op and non-op should do is taking estrogen forever, especially post-op where the body do not produce hormone.
Non-op
Taking T-Blocker of non-op on long term, you should take lesser dose. What can it posibly damage is liver. You can take lesser after time, and keep checking on your body health. Most girl take too much T-Blocker for long time that's the risk. But after few years on HRT, you don't need a lot of T-Blocker like when you start.
Post-op
If you go through many study of long term post-op there are many risk which not many people talk about it like low on self immune, body doesn't recover well when you get sick, high blood pressure (this happen to most older, bit higher on one who constantly take estrogen) and it can lead to liver disfunction and more. You know the blood flow system is everything.
So I don't think health issue is the pressure to make you get sex change decision... Both op and non-op have its health issue. What you got to do is stay healthy living, exercise, which is very important for us. Most trans avoid exercise cause they do not want muscle, which is no good. At least do cardiovascular regularly. And get your body check up every years.