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If all of your cards are listed in your sig, the only three that count against your 5 revolver limit are the Hilton, Delta and Magnet. If you want the ED, app for it. I wouldn't close the Magnet until after the anniversary.
The BBP is the forth revolver. Getting the Amazon and Everyday would push to 6.
It's a lot for one so young.
Maybe give what you have time to grow?