It seems as if you do have gender dysphoria or perhaps body dysphoria, because you want to maintain your gender but want a significant body modification. If it were a tat there'd be no discussion, but in society's wisdom and attempts to be helpful, we have drawn some pretty clear boundaries. I chaff at some of them but respect them.
Sooo as you can see, I am somewhat of a rebel on these matters and found/find all the gate keeping largely a p-i-t-a. It wasn't/isn't my game however and to play I have/had to follow 'their' rules. In this case I wonder what rules should apply and firmly suggest the fewer the better.
That said, there's much to be fully embraced out of the gate keeping mindset, such as: therapy, endocrinology, experienced surgeon, support groups, . . . these are things anyone facing such profound life changes ought to consider and use in the course of their treatment/journey. They just make good sense.
I wish you well and suggest you keep talking here. Also, we tend to be sensitive over disagreements here and for good reason. I do suggest that if you find yourself in disagreement you do so in way that forwards a positive discussion for yourself and others. That way a disagreement can be a pathway to a new level of understanding. We can do that and disagree as long as we are respectful of others and create a body of conversation, a commons if you will, that serves as a set guides and markers for others to help them along their way, as well as serve the OP's needs to talk and process.
Take care,
Rachel