That's correctly put, because medicinal practice is not a cycle.
I've been on TRT since 22 years old and I am now 37, going on 38 years old this summer. So that's a lot of time being on TRT. I used gels up until four years ago when I started with injections and HCG for the past three years with T.
Injecting oneself with 28 gauge insulin syringes three or four times a week is not a big deal considering they're hardly felt, especially when you inject into fatty areas. I used to do IM injections and although they were not especially painful, they were not comfortable.
PS: you might not need an AI. Most don't. I haven't used or needed an AI in all the sixteen years I've used TRT, not even with added HCG. Same goes for my friends and relative on TRT.