I do not recommend injections for anyone. It is too much testosterone. It's not a lubricant. The oral dosage is .25-.50 mg per day for most people. The trick is start with a topical application to the genitals.
Hormones can smooth out the symptoms.
You said half-strength Estratest is too much. You are better off having the exact amount of methyltestosterone compounded to order by a compounding pharmacy. P2C2 stands for Professional and Patients for Customized Care. There is no way to predict exactly when that may happen. I know you have a complicated circumstance.