It took me 4 to 5 months after I did what you did and just tried to get the endo to get on board. Unless you are supposed to be dead by now and just want to enjoy the end of your life like me, it's not advisable.
Some endos are compassionate and get you on asap, some endos have made some wait years I have heard on here.
You are in kind of a pickle, I'd like to help ya, but the moderators are picky about giving out info, but for a good reason. You just cannot guess at it though, are you having any headaches? Just take one pill a day for a week, then every other day for another week, then take a pill if you feel really off. (Please moderator leave this for her to possibly save a life!) But get to an endo asap. Take baby asprin each day for a while to keep your blood thin. It just depends on what you took esp.. hormones will be setup for you at the lowest dose that does the best possible help, but you can take too much..
As for breast pain. I honestly don't know if cis girls have pains like this, you are going through puberty faster than normal again is why..
As for the hormones being illegal, you just need a script in the states to get it. You can order online, but are you sure that's what you got? I ordered lidocaine powder once from Canada and got talc. Then I ordered from Taiwan I think and it was pure and 10x cheaper. So you gotta know your source. Even your local drug dealers cut it to make a quick buck. And when you are transitioning, you want to be healthy, no toxins, no drinking or smoking. Are you doing that? It's a commitment;) 4 life!
Hope this helps, if you are serious, then you should go the right way, or the way you are willing to live with. No since transitioning if you just make your life worse health wise.
You should give a little info about yourself. We are here to help, no cops gonna come for ya;)