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I started rebuilding with a Capital One Journey with $500 credit and built mine up from there. That's a student card so I'd try there.
Since you already did the deposit. Cant back out now. Whats done is done. Since this will be your first card. Use it and PIF. There are tons of topics for the Cap1 Secured card. Just type in the search above. It will populate a lot of info. Congrats on your first card. Also CK means nada. Only good to keep track of whos reporting what on your EQ & TU each week. You can get the free TU FICO with Discover and EX FICO
Good luck