How much should I pay for bleeding in my mouth and eyes?

You should call the police immediately and hit someone, which belongs to the responsibility of the public security organs. The public security organ will also mediate the two of you first. If the injury is not serious, you can negotiate on your own, then mediate. If your injury is serious, apply to the public security department for injury appraisal, and negotiate the compensation amount according to the appraisal result.