Your credit report is generated by three major credit bureaus and includes information on how much you owe to various companies, your payment history, and other financial obligations like utilities and medical bills. Your FICO credit score, which ranges from 760 to 620, is calculated based on your payment history (35%), amounts owed (30%), credit history length (15%), new credit (10%), and credit types (10%). You can improve your FICO score by paying all bills on time, avoiding opening multiple new accounts unless needed, keeping credit card balances low at less than 25% of the credit limit, and reviewing your credit report yearly.