From my own personal experience SFP, I took an almost two year break after my last relationship to "fix myself" as you so nicely put it. I don't claim that I will be single forever, au contraire, I think being in a relationship for the sake of being in one is very easy, but being in one with some you can actually care about and that you can make it work with is a lot harder.
I told you my standards earlier and I stand by them. I'd also add that said person has to be intellectual.
I could also add a lot of superficial things that I would prefer, but that in reality don't matter.