Hmm in order to become as big as the pros you'll need to run an INSANE amount of AAS, including HGH. These cycles will cost you thousands of dollars.
Pros take up to 3-4 grams of test per week, stacked with things like EQ and sometimes orals. Some pros spend up to $30.000 per year just for HGH.
If you think you can afford that (money-wise and health-wise) then by all means go ahead.