How can I start to transition before I've come out?

Hello everyone! This year I've recently started to realise that I am in some way trans – I don't know if I'm non-binary or straight up MtF, but I know that I don't fit the body I was born in.

This is obviously a big thing for me to come to terms with, and I'm not ready to tell my family yet. Before I do, how can I help myself cope with dysphoria? I am shaving my legs (even though it's so much effort), and I'm trying to buy more gender neutral clothing, because I obviously can't wear blatantly feminine clothing yet.

Any help would be greatly appreciated, thank you!