I need help desperately

I live in Scotland and I really want to start HRT as soon as possible, but going through the NHS will take years so i want to do DIY for the start, then go through the NHS for future prescriptions. I have done a bunch of research and i lnow the risks and side effects and all of that. The only things i need to do is pick what medication i want to use and find an online pharmacy in scotland or at least in the uk where i can actually BUY the HRT. Istg i have looked for ages and havent found anything. Am i searching the wrong things?? And i have no idea what medication would be best cause there are so many different names for everything and so many different types of medication. I do know that i will need a T blocker and some form of estrogen, bit there are so many different types and it is very scary.

Please help, i need some advise or something i really want to start hrt by the end of the year at the latest.