Wow, I've never heard of that protocol. Have you had any labs since you started that? I'd be interested to know how well it worked for you.
You definitely need an AI when on TRT, man. But with less frequent injections, I'm not sure what the dosing would be like. You might want to ask your doctor about it.
When you put testosterone and other AAS's in your body, they undergo a process called aromatization. This is where they are converted into estrogen. High estrogen can cause a lot of negative side effects, and you could end up feeling just as bad as you felt when your T was low.