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Can you list more info?
What are your MyFICO scores? The change?
What other CC do you have? Limits? Age?
Any lates or baddies in your file?
I don't know that there is a specific answer. You've now got a number of decent cards reporting on your file, so stick with those and let them age to help your file. As you know and are actively working, getting the baddies cleaned up is the best thing you can do. All the scores will improve with the resolution of the negatives. EQ also, eventually.
FICO scoring is a marathon, so just be patient. Except with the negatives, you can hustle to get those taken care of
Good luck!