<prompt> Human: Ive had a B of A credit card for 18 months with a limit of 500. I just got raised to 2k and my credit score is up to 690. Not really sure how to proceed from here? Just a humble retail worker, so not a lot of clues on how to build up my credit. I just use it mainly for bills then funnel in the money from my checking each month.  <response>: Congrats!You did good to accept the credit boost. The most important thing you can do is, ironically, nothing different. Dont change your spending habits just because you now have an enlarged credit line. Stick to what youve been doing.After 3 - 4 months from now Id try and apply for a second card with a similar limit through another bank. This could help your score increase. The bureaus like seeing multiple revolving credit sources on your history. Other than that just be patient and take pride in the fact youre moving along pretty darn smoothly.PS: When looking for that second card visit rchurning to see any potential offers. Banks sometimes offer great promos for signing up with them that you dont want to miss. 