What was your first course? Did it work for you? If it did. "Amplify" it. For example, if you ran 500mg test. Try 750mg
Or try 500mg with 300deca
I wish I knew how to build "pure muscle" haha seriously though, do you wanna get Huuuge. And sloppy and bloaty. Or do you want to recomp and in the process "look bigger" by loosing fat and gaining muscle.
I honesty don't know how to help you man. You were so descriptive with your post I don't know where to begin