I am assuming you responded to the suggestion of estradiol. You will need health insurance for it. You also will need to be on progesterone, too, while on estradiol. The easiest method of getting progesterone is going on a progesterone-only IUD and there are small enough IUDs to be worn by women who have not given birth. It is a one time procedure and then you can wear the device for 5-7 years. You probably can have it done at a low cost at a Planned Parenthood clinic. But estradiol is a monthly cost, typically for patches, so you need continuous access to healthcare for it.

Hormone-replacement therapy is most effective when started early. So this is something to look into right now, without waiting.