I think your lineup looks solid. I just recomend using them and making ontime payments. As your score increases youll get better limits. Discover is sp for cli , so you can always hit that once a month to see what kind of schedule yoy are on. Citi Dc can give you cli sp increases every 6 months once the ball starts roliing.
If i were to add if probably get a Bank of America card for they can be generous on cli even though hp and they give nice bt options to use when needed. Also a credit union like Penfed or Navy might be a nice addition if you can join, Navy maybe harder due to rrstrictions though PF anyone can join
If i were to add if probably get a Bank of America card for they can be generous on cli even though hp and they give nice bt options to use when needed. Also a credit union like Penfed or Navy might be a nice addition if you can join, Navy maybe harder due to rrstrictions though PF anyone can join
Youve got good stuff. Let those age and grow, you dont need anything else (except maybe a travel card like venture)
At your age all you can do is give it time. At best youd have a few years in, and the big limits dont start hitting for quite a few years as ive seen.
You wanna talk baby limits, check mine 
Youve got this. Youve got three of the best cards out there (chase freedom, citi double, and discoverit)
I wish I could trade with you. (your "arsenal" looks very similar to my ultimate goal actually, to have five rock solid cards, but first I have work to do to get back up out of the derog/short history pit) Most of my cards will be gone and replaced in a couple years.