Unsent Video stuck in msg blocking text box

Attempted to forward a video but received notice saying file too large, try smaller clip. I did that, but the original video file remained in send que and I’m unable to send, remove or delete. Tried rebooting phone, turned off 3 times. No change. Can no longer communicate with friend who I text with often. Have seen several similar posts with this issue, but no advise or resolution. Please help/advise. Thanks.