When an accident happens and your thinking that it was partly your fault, the best thing to do is not to talk. This is not lying, it’s just that your thoughts might not be clear after the accident, or the accident may look different from someone else view or may be different later when your mind is cleared.
If a police officer arrives to investigate the accident, you will have to cooperate and give your own statement, but don’t obligate yourself to tell that the accident is partly your fault. An attorney can help you with the incident, you may discuss with him what happened, and the lawyer can they decide what the next step to be done.
When the accident is being considered that it is partly your fault and there was damage or injuries involved, you may still have a compensation claim for financial or medical insurance. These scenarios may pass through series of legal process to settle an agreement.