I think you are making a good move brother. Get everything back to normal as possible for a good while, get labs done again in a few months, and then reassess.
I didn't want to sound like a scare-mongerer though, so I don't think you have to never use any oral again ever. I would just suggest getting the most out of what you can using just test, or test and other injectables, then use an oral for a short duration to finish off a cutting phase once a year, or to get you past a sticking point. If you are able to get labs done, i'd use those as your guide on future decisions.
One thing to keep in mind, is that if you are out of range with lipids the whole duration of a cycle, say, 6-12+ weeks, then get off and get them back into normal again after a month or so, then decide to jump back on for a few more months (whether it's orals or injectables that effect your lipids) with out of whack lab values, then you are still spending the majority of the year with messed up lipids. I see some guys who spend most of the year 'on' with out of whack labs, then they get excited because they get them back to normal for a very short measly period of time before they get back 'on' with a cycle that puts them back out of whack, and I just do not feel it's really doing them any justice toward health.
If you spend the majority of the year 'on' with just test or compounds that do not necessarily effect your lipids that much, then that one time out of the year where you jump on an oral for 6-8 weeks, should be minimal toward any detrimental (hopefully) sides, or unhealthy heart conditions. This is where getting labs done 3-4x/yr will help you see what compounds (and their doses) effect you worse, or hopefully none/minimal at all. Sometimes a drug at 2x amount will have an effect, but if you drop it down in the amount, say 1x, then it may be a lot healthier....i'm speaking ore in terms of injectables, as even small doses of orals seem to effect lipids....at least for many.
Seeing that you are in your 30's, I think you are being wise. You can still have fun, you just have to be a little smarter as you age
Hey, let us know how it goes for you. Also, some labs will take a while to get back to normal for some people.
For kidney, make sure your BP and blood sugar are in check, and stay hydrated. They liver will be healthier via diet and not relying on orals as well. The liver is a little more forgiving.