I've been playing cards for many years and have probably had over two hundred accounts.
Eleven is nothing--although it is a good start.
Who cares if you get turned down? I sure don't--and a call to the reconsideration line just about always turns things around.
I don't care about all the inquiry stuff either. Hard or soft they don't really appear to make much difference.
Just read the appropriate threads on FT and follow the app tips you'll find.
By the way, dear OP, I have five Chase cards right now, including some INKs and a Sapphire MC. Had the Sapphire Visa before and got a second bonus for the MC.
Don't worry, be happy. @:-)
This hobby is supposed to be fun.