Congrats on getting started on HRT.
Which way is "best" depends on a lot of factors. Patches are used when the doctor is worried about liver function: they are preferred for older patients for that reason, and for those with other health issues. Injections also save wear and tear on the liver, but there is the added hassle/risk of using needles. Pills are cheap and convenient, but are hard on the liver.
You might want to discuss this with your doctor to see if there are alternatives that will work in your situation.
