Common mistakes include delaying medical treatment, failing to report the accident, losing evidence such as photographs or witness details, and admitting fault before obtaining advice. You should keep records of symptoms, expenses and correspondence, and avoid posting comments or images about the incident on social media. Personal injury claims usually have a three-year time limit, although exceptions can apply depending on the circumstances. A solicitor regulated by the SRA can explain the relevant deadline, evidence requirements and whether pursuing a claim may be appropriate.