It is advisable to use both high and low reps in your workout program if you are looking or build muscle, lose fat, or just enhance your overall physical fitness. Depending on the training outcome, some rep ranges are more optimal than others. According to fitness gurus, the best rep ranges to bring about the most radical changes in body composition for fat loss and muscle building, in terms of time-efficiency, safety and overall effectiveness possibly happen within the 6-12 rep range. Your specific goals will determine what ranges you should use.
Stop the cycle now bro, youve only ran it for a week so it wouldn't have damaged your endocrine system too bad. Orals are pretty suppressive so you might want to run a short PCT like a week. Then you need to research more into why you need testosterone such as Test E or C as a base and why you shouldnt run cycles too young, You wont achieve any gains off this cycle bro, everything you gain will come right off when you stop the cycle, even with a good PCT. which is why you should stop now and save yourself the time, effort and money and research more.