I don't know if you would be in Australia or not so I am unsure if I can help but I didn't pay much at all to access my pills. After seeing a gender psychologist , a psychiatrist ect. for a length of time(Which cost me nothing because of medicare) My treating doctor then prescribed me an antiandrogen . Then soon after oestrogen pills. Because of centrelinks healthcare card I get pills from the pharmacy at $6 a box or bottle.
Like were Cindy was going you really should see a doctor. As long as you do things the safe way. If you get pills from an unofficial source they could be tainted or useless. I don't know were you are up to in your transition but if you have already got pills the official way why can't you just go and see your local GP. to get more prescriptions..
If you are at the start of transitioning your GP or doctor can help you find a psychologist that will start you on your way. In the begining I went to a psychologist at a sexual health clinc
Oh, and if you actually have prescriptions made by a pharmacist you could ask them to provide you with some pills to get you through until the next time you see your doctor to get more prescriptions. They won't give you too many pills though.
To wrap this up, self medicating is potentually really dangerous so please don't do it