Gain Mass

I have been working out for about a yr now. im 6'2 and weigh in at 190lbs. I would like to be huge however! 220+ would be nice, im drinking nutrex underground protein along with croncret creatine. I try and hit the gym atleast 3x to 5x a week. But i dont gain weight at all! Please help, i really want to bulk up for summer! Will testoserone booster help?