Raise my credit score fast and free

Thank you for having such an informative credit help site!
To let you know a little about me,
I HAD a 612 credit score in September 2006, since then my score to 637 points.
I’m new to the credit card game. I just established my first credit card about 2 years ago. I did very well with it and was able to open 3 more. I fell into a financial situation and used them OVER their limit, and now my credit score has been affected. I’m I the process of getting the limits down to 50%. The second thing that made the score drop was a JUDGMENT that has just been satisfied as of 2 Friday’s ago. In the interim 30 parking Tickets showed up on my report…talk about detrimental!
I wrote the Mayor in my city to let him know that totally ruined my CREDIT! What should I do? Should I apply for another credit card to transfer the balances of the three? None of of my credit card limits are over $300 (thank goodness)!
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got to pay it all off
thats all i know to say
only 300 per credit line?
pay them off.
get and keep 3 12 months plus lines reported to bureaus credit