There are a lot of details missing from you post as far as what has been tested, but just assuming you really need to be on TRT: it does take most guys 2-4 weeks with regular dosing and schedule to notice any results. Secondly, you don't need to add anything else into the mix- once you know where you need to be to feel optimal with the least amount of test. Some guys split it into multiple doses throughout the week to keep e2 down and make the test levels more level. Some of us don't have that issue, so once a week is fine. It really is up to you.
If you need to be on TRT, it is for life. Could you stop and run PCT to come back to normal- sure. But if 200s level test is your normal, do you really want to go back to that? I say hell no you don't.