If it is confirmed that the tendon is broken, it is almost impossible to recover, and reoperation will also increase your personal pain. Because tendons control the movement of fingers and joints, it is a bit like a rubber band in reality. Once it is broken, be very careful when repairing it, otherwise it will easily lead to abnormal bending of fingers. Personally, I don't agree with the operating level of general surgeons, especially young doctors.
If you want to recover, you can only rely on yourself. I can answer online, free of charge.