As well as removing negative information from your credit file, you need to be adding positive data points monthly as well. This means on time monthly payment history on all accounts. Less than 10% utilization on all credit cards on a monthly basis (statement date), at least 3 revolving accounts (credit cards) and 2 loans (installment accounts), 5 - 7+ years of average age of credit (use authorized users) and less than 3 -4 inquiries in the past 6 months. Your main concerns are payment history and utilization.