I had one of those. I didn't get through it, but I don't feel like anything was too important. There were alot of pictures involved, and I wore shorts for the last time before shaving my legs, because once you start really self feminizing, you can't pass for cis-male as well... Much happier with my body and lifestyle now though, so no problems...
If you like swimming, I suggest you get plenty of that in, with swimshorts and no shirt, because once you start shaving all that, you might get a few odd looks, and once you start HRT you'll want to wear that shirt...
Most importantly, take pictures and notes, and pay close attention to what it's like to be male. It's a life-experience that only trans-women have access to, and you might want to remember it later. Also, knowing your male body well will help you 1) make decisions on what to do with it and 2) help with dysphoria and euphoria later by making changes more apparent to you.
