If one were to begin a first cycle of anabolics, it should be testosterone only. We preach this on dozens of threads daily, all you have to do is use the search button at the top, and you'll find hundreds of threads explaining why.
One does not consider a 'drol only cycle. it will shut down your natty test production, and your body does need testosterone. I've used drol before, but always stacked with test. Never by itself. You have the four weeks part right for drol, and the 50mg/day is reasonable for a beginner.
But if you have a fear of needles, then this isn't the game for you. There are big and little pains. A big pain is ripping the shit out of your hamstring, and feeling it pop like a bunjee chord. A little pain is a small pin prick from a needle. So if you have a fear of the little pain, then I'd highly recommend jjust fine tuning your diet, exercise routines, and adding some creatine to your supps you take.
Good luck!
---Roman