Advice on Estradiol for a US-based potential buyer?

Hey! I'm looking into some websites to ship Estradiol Valerate or Estradiol Enanthate injections, but they all have either long shipping times, only accept cryptocurrency, have questionable safely or uptime, or multiple of those things. I'm not 18 for another couple weeks, so it'd be nice to not have to wait to buy crypto just to pay. Looking into pills, it seems like there's a far higher supply of reliable providers with a much quicker and easier checkout process. With all that said, I'm looking for guidance for the following questions:

1. Is there a diamond-in-the-rough provider with reputable safety who takes card for Estradiol injections?

2. Are pills an acceptable substitute, and what are the upsides and downsides compared to injections?

3. In general, in my shoes, what would you do? I live in an informed consent state, would it be especially easier/safer/cheaper to go through a medical practitioner? Would you bite the bullet and wait a couple weeks until I turn 18 to buy crypto to ship from OpenGate or AstroVials or something similar? Or something completely different?