Any tips to getting approved for the PBE?

I am by no means an innocent player, and I still find myself making sillies in chat when I'm angry over a meaningless thing, however I think I have improved, and every time a new champion comes around or a change to my favorite items/champions comes out, I regret not having it. I applied a few months ago so I feel like there isn't a chance, and there is no way to reapply it seems.

Any tips to getting the OK to go on the PBE?