<human>: So somehow I missed the memo in college and my early to mid-20s that credit cards were a good thing.  I was always proud of not having one and getting by on what I could earn etc. etc. I realized some years ago that I would need to build credit and having student loans in good standing and having paid off a $18k car loan did not qualify me to get much of anything.  I got a best buy card to get a TV when I was 22 and was abysmal at remembering to pay the bill on time.  Lesson learned long ago.  All knocks against my credit are long since resolved.  

So I looked at getting a Serve card since I have only one reporting loan (Navient student loan), but did not activate it after reading further that it doesn't help build credit.  Then I applied through my bank (BoA) for their cash rewards card.  I believed it was rejected because it said unable to approve online we will send you a letter.  shit.  I see now that that wasn't really a rejection.  Anyway, fed up with the BS I plopped some money down on a secured card.  Now I have two BoA credit cards.  

Question: Is there any advantage to having two cards from one lender assuming I use both properly, or should I cancel the secured card while I can?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I have two Bank of America credit cards and don't know what, if anything, needs to be done to maximize credit growth.