Even if the debt has passed the SOL in your state for suit (variable by state) and even the federal SOL for reporting (roughly 7 years from when the debt discharged) a collector may still pursue you for this money if you owe it. They will just never be able to collect it or report it if you don't allow them to, although they will certainly try and hope you are ignorant enough of the law that they get money from you.
You will also need a big lump sum of cash. Borrowing from your 401(k) retirement plan is an option if you have no alternatives. It isn’t considered an actual loan, so it doesn’t show up on your credit report. You can borrow up to 50% of your plan balance without penalty. However, before taking that route, see if a wealthy family member may consider giving you a loan instead, as dipping into your retirement savings can be disastrous in the long run.
It helps to go through your credit reports with a highlighter and pick out any and all inconsistencies. Keep in mind that a credit report from one credit bureau may have an error, while another may not. That’s why it’s so important to check all three of your credit reports from all three credit reporting agencies for inaccuracies on each. You may find none, a few, or perhaps many errors on your reports. That’s where the next step to improving your credit comes in.
Credit scores are very specific to the individual. It is possible for two people to have the same credit scores, but for very different reasons. The only way to know what you need to do to maximize your credit score is to identify the specific items from your personal credit history that are most affecting your personal credit score. If you recently ran your credit with credit scores, review the factors.
This is easier said than done, but reducing the amount that you owe is going to be a far more satisfying achievement than improving your credit score. The first thing you need to do is stop using your credit cards. Use your credit report to make a list of all of your accounts and then go online or check recent statements to determine how much you owe on each account and what interest rate they are charging you. Come up with a payment plan that puts most of your available budget for debt payments towards the highest interest cards first, while maintaining minimum payments on your other accounts.