Two things stuck out at me in your post.
1. Yes, body fat most certainly matters. Adipose tissue (belly fat) is where we store a great deal of hormonally active fat containing aromatase. This enzyme is responsible for the conversion of testosterone to estradiol (most potent form of estrogen), which is where the side effects come from.
This makes managing blood pressure, gynecomastia, acne, prostatitis, and all the other potential nasties harder. AAS is NOT the way to lose weight if that's your goal.
2. You state that you're still doing cardio. This tells me you're trying to lose fat (yes, the title clued me in obviously), which is seriously all about diet. If you don't know how to eat properly, you will not be satisfied with the results at all. I'm not blowing smoke up your ass, I did it the WRONG way, and speak from experience that there isn't a shortcut.
I also have to ask how old you are. If you're fresh out of college athletics, I would imagine you're under 24-25, which is a bad idea in itself. AAS disrupts the process of puberty (25 is when we stop as males), and while your height may have ceased changing, the important stuff is happening now - like cognitive ability, reasoning, et cetera.
I would hold off for now. Get things like diet mastered, get in the gym, and if you still have a few years to go - enjoy mastering these in the meantime - so you'll be truly ready.
My .02c
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