I have come recently to the miles and points game. At first I didn't know what was going on so I jumped on various cash back cards. But then I heard about high bonuses and the nuances of miles and points. So I applied for a few more. I originally started with 2 cards but in a matter of 2 weeks I applied and obtained approval for 9 cards (putting me well over 100,000 USD line of credit).

In the middle of my spree (when I had only applied for 2 cards), I checked my credit ratings. My FICO score was 809 and my Credit Karma Transunion score was 769. After one week and 7 more applications, my Karma rating dropped 46 points to 723. Wow, was I shocked! According to Karma, I get an F on Age of Credit history as my oldest account is only 5 years and the average account ages is a measly 1 year and 3 months. I don't know what how my true FICO score has been effected as I am reluctant to spend the 19-20 USD to get the report. According to CreditKarma my Vantage Score is 840.

I wanted to get some better cards that I missed but decided to lay low for now. Fortunately I am not planning on taking on any loans for many years and have no outstanding debt (no mortgages) whatsoever so I think I am OK.

How long do I need to wait do you think before things change and I am able to get back in the game?