So, the put things in perspective in terms of timeline: Most surgeons want you to be on T for at least a year, usually two, before they'll do a metoidioplasty, because it takes that long to ensure you've achieved maximum growth.
While voice begins to deepen right away, for most people it isn't noticeable to others until around the 2-3 month mark. And it usually takes around a year to finish dropping. There are a lot of people who've documented this stuff on Youtube if you want some references to get a better idea.
Everyone is different, and some people luck out, but realistically speaking you're going to need more than a couple months' worth of treatments.
I'm curious about why you're so set on only a couple months? Is it the cost? If so, there may be a clinic in your area that offers it on a sliding scale. Is it the fact that you need to apply gel every day? Consider that weekly or biweekly injections are a thing, and in a lot of places they're allowed to be self-administered. Is it that relying on a medication bothers you? Because if so, then I question how that could be worse than feeling dysphoria every waking hour for the rest of your life. It's no different than, say, insulin for a diabetic, or antibiotics for an infection. You may need it, at least for a little while, in order to remain healthy.
