One of the biggest questions when it comes to building a repertoire is should I focus on only one opening or include more than one option for each side? There is no right answer to this question; probably the way to go is what works best for you.
Both have their advantages and disadvantages. For example, playing more than one opening could result in knowing them less; you might not get to know all the subtleties and existing plans. The bright side is, of course, that you’ll be able to change your opening depending on the opponent you’re facing.