Besides even with a well thought out cycle, perfect training, great nutrition, and a proper SERM PCT... none of which you have.
A short cycle of dbol is going to yield few if any lasting results.
Dbol simply has difficulty producing lasing gains, you generally need both a type 1 and 2 androgen to see good results (test fulfills both requirements)
Dbol only fulfills one.
Take it by itself generally yeilds temporary pump and rapid strength increases, but these disappear as soon as the androgen clears your system.
Bottle line, even if you do EVERYTHING right, dbol will not produce substantial lasting gains simply because of the androgen type.
You might gain 10-15 pounds in 6 weeks but your going to lose all but maybe 5 when you come off, assuming you do it properly.
Risking gyno and permanent test production impairment for 5 pounds that you could make easily with a quality program and some deadlifts in about the same amount of time is just absurd.
My recommendation is wait about 2 years, I know what its like to have had the juice in my hand and know I cant inject it.
I had access to the stuff at 18, like a candy store.
Ive been there, you will not regret waiting.