Help🙏🏻

So, I've been with my boyfriend for almost 2 years and everything is going amazingly. But I've been thinking of one thing for a while now: if I were to plan on breaking up with my current boyfriend, would it be wrong of me to find someone else before I do so? 
I know maybe many of you think that it's wrong of me to do that but, I feel like its just this thing that I do. Like its MY habit. 
I just need some sort of answer or some sort of words of wisdom.
I don't plan on breaking up with my current boyfriend anytime soon.
I just need some sort of closure on this idea🙏🏻