remember until april. AAS do not burn fat, so whatever you have is not going to dictate bulk or cut
Everybody uses test for both so it is not about that.
manipulating water retention is one thing, but other research material is needed besides AAS when april rolls around if you are going to really play the game.
lab research which keeps the test high while minimizing water, minimizing estrogen, combined with some thermogenics, possible thyroid manipulation, and possible beta agonist, and antagonists, and you are on your way to the stage.
njoy the first ride, just make it worth it with your diet and your training before You prob won't really notice for a couple more weeks. slightly maybe, but 4-5 in you'll be feeling it

One other piece of advice. don't think in terms of bulking cutting, etc. just think you are bodybuilding. Bulking and cutting gets out of hand and those terms are used too loosely in our world
-c