Does this mean your credit report be clean of negatives in 7 months?    That is much more important than brand of CC, and having more than 1 card is good.

Increasing Capital One deposit is good idea, (it worked for me with next Cap1 card).

I suggest you apply for 1 or  2 cards in 7 months.

Amex Zync

Capital One unsecured card (what ever they prequalify you for)

If you have success with that, then close the FP and Capital One secured.  

Then Wait 6 moths or more and try for the others.