Sarah they do follow wpath but more like the endocrine society.
they give you blockers if you are under 18 to halt your puberty ( if spiro is given to you diet is to be looked after and also it causes brease fusion ( a small study was done) )
so better wait for 6 months is a good argument but once you pass certain stages of male puberty they are damn irreversible
so better get to your doc and speak it loud, get into blockers like Bicalutamide as they are non-synthetic and help as well ( doctors legally can give you blockers but not E which needs parent’s consent for minors)
so with your puberty blocked you can take E whenever you want and by that time your Testosterone levels will be lower and Estrogen can be used at low doses instead of high and less risk of clots etc.
and if you do start E soon you do get the benefit of reversing some male puberty.
good luck and be thankful for your parents cause not everyone gets it.
i also vouch for dr kalra and please avoid those one session letter doctors they are really the worst.