First of all, Leannes, welcome to the site. I am glad you came here to discuss your issues.
It is always best to follow your doctor's instructions when taking HRT medications. The development of breast tissue often comes in spurts, so I don't think you "screwed things up." You are only six months into your transition, and breast development sometimes takes years.
I'd like you to read the Terms of Service. As Emily pointed out, we don't post dosages here, because everybody is different, and what might be appropriate for you, might not be best for someone who might be on DIY hormones.