Cross-dressing, Trapping

Hi y'all. I've decided to tell my mum about being trans. Going well so far but I am terrified about the prospect of telling my dad and people finding out at college. I've been to see a psych but she is telling me that I have to wait 18 weeks because anything else can happen - she doesn't even know much about any of my issues and they are refusing to prescribe t-blockers.

I'm 5'9", weigh about 60kg but have quite a bit of muscle on my back, arms and thighs. What can I do in the meantime while I wait it out? If I don't make some form of progress i'm scared that I might take my own life. ._.