Test and Primo - first cycle? Thoughts

Apologies for the rambling. I’m now in my own head thinking about all of this.

Background: I am M 44 on TRT (Test C 150mg p/w - MWF) no HCG. 6’7” Have 6 kids (and had the snip) and am already bald. I noticed that at 125mg I wasn’t quite right, so went to 150mg but e2 was just out of upper ref range and nips a bit tingly so dropped dose and went to 3 injections per week, felt like crap, so upped to 150 and feel ok. Just waiting a couple more weeks before I get bloods done again.

I have lost about 5&1/2 stone (Mounjaro and reta) and am now down to 23% BF. I lost a lot of strength and muscle to get to this point and think I want to get down to 18% and then do a cycle.

The other thing I’m thinking is if I’m e2 sensitive (which it would appear so) then wouldn’t it make sense to keep the test C where it is and just add in 100-150mg of Primo to boost the test but control the e2? Or would this still be too low?

Instead of waiting to get to 18% could I do this now, eat at maintenance and recomp through gaining muscle?

Then the last thing on my mind is that because I’m on TRT would I need to PCT?

Thanks for listening to my ramblings, any advice, suggestions etc are greatly appreciated.

Cheers.