hi , i am 39 years old. i am working out for a long time and i am in good shape.i am at that point where my natural gains are stop .i am all natural and i am planning to start my 1st ever cycle. can some one guide me properly how to start and what to choose for my 1st cycle as i dont need much size but a lean body. plz guide me option of my 1st cycle plus during cycle protocol and post cycle therapy and duration etc, thanks