Well, here's advice to help you. You're too young for steroids (Phorce has dimethazine, and dimethazine is a steroid, not a prohormone). Even putting your age aside, you're not experienced enough for steroids. You say you've trained two years "off and on". Two years of solid training would make you an intermediate lifter, but this "off and on" bull**** (and way too many guys come here saying they've trained "off and on") makes you a beginner. Steroids are for advanced trainers who have made a lot of natural gains and are at or near their genetic limit. This takes a whole lot more than two years of "off and on" training. Steroids are also serious compounds that require serious consideration; if you aren't even serious about your training, how can you make the weighty decision to use steroids? Now, your training: It sucks. In the workout you described for us, you trained biceps before shoulders, which is folly for the most part. Advanced trainers have the knowledge and freedom to do this and make it work if it's right for them and their makeup and their state of development, but you're a beginner who's clearly just doing it because the biceps is the show muscle. Beginner trainers should always train the bigger, stronger body part first, and that body part in this instance is shoulders. Not only are you training biceps first, but you're training biceps with twice the volume and intensity of shoulders (by the way, you aren't supersetting curl movements; you're compound-setting them). The advice already given about emphasizing conventional forms of the shoulder press over Arnold presses is also sound; even the man the Arnold press is named for didn't build his shoulder training around the movement (he also trained his shoulders BEFORE his biceps in the same session). Your diet may or may not be good; the meal you cite is good, but it's only one meal. What do you eat the rest of the day? What's your typical protein intake? Carbs? Fat?
In conclusion, I advise you to learn how to train, then take that knowledge and put your nose to the grindstone in the gym. Commit to your training and eating the way you would commit to any other task that you truly wish to excel at. Then look into natural supplements, and in five or six years you can come back to anabolics, older and, hopefully, wiser.