I personally like studying a wide range of openings, but my goals aren't to improve my chess ratings but rather more along the lines of mental exploration.
If you just want a high rating, you would probably be better off sticking with just a couple openings so you could master its various lines and turn it into a serious weapon.
@Bankoscarpa, you've played for 3 years, lately with lots of bullet games against computers, and your ratings remains rather low. Moreover, your standard rating is against opponents whose average rating is 250 points below you. What's up with that?
Consider slowing down your games, hitting the chess books, and finding yourself a new business model.
Your current business model is failing, rather badly. Sorry.
P.S., you really must stop playing computers in bullet. On balance, you need human competition, at slower speeds, in order to improve. Game in 10/5, up to about Game in 30/5, are reasonable practice speeds.
So Hit the Books, or Get a Coach.