Are you sure you're "not good enough?" I mean, when I was deciding whether or not to make an audio version of this story, I considered all the players, yourself included. You were good enough for me. As for being constantly behind, well . . . I don't think that matters if you're hanging out with another player. It took a couple of days for me 'n 9012_dirt to catch up to Johnson's story in Pewter City, but we kept a narrative flowing naturally. I suspect there are three alternative reasons as to why you're heading out, Cosmic. One: you're part of a bunch of other RPs, and it's spreading you thin so that you've got not time left for this one. Two: aside from the neutral goal of wanting "to be a good trainer," you haven't expressed a stake in this good-versus-evil themed story. And three: you don't currently have someone to acknowledge your character. Without companionship, Chris is left to scream into the unfeeling abyss.
It doesn't have to be that way.
D'you know why I'm devoting a couple paragraphs urging you to reconsider staying? It's because you originally came to me first, looking for a roleplay worth seeing through to the end. Well, this is one of those rare special cases. If it wasn't what you had in mind after all, you are, of course, free to go. But I hope you feel free to return, too. I'm sure Johnson and the others feel the same.