I started T 2 years ago, had my SRS in 2005. I feel and look better. I started with Androgel, applying a small amount daily, discarding daily or you can try and close it with pin, reuse it until you use all of it. I later switched to injection of testosterone cypionate, a small amount every 3.5-4 days combined with estradiol valerate. That is when I really started to see improvements in my body (weight loss, less cellulite, better skin tone, etc.) and my libido really improved! Injections for me worked way better but I also take a good amount of estrogen to balance/to avoid side-effects from too much T like acne, body hair growth, etc.
Another option is to have a compounding pharmacy prepare a cream/gel for you, customized to your needs.