Since every injury/person is unique there is no set method, experimentation is required.
Have you learned to activate the relaxation response?
Do you understand how the placebo effect works?
I have no idea if those two functions are vital but they do help. Since pain hurts I'm in favor of using every tool available to get rid of it.
So you have a knee problem, if it is not actively generating pain signals you have to stimulate it. Standing up straight on a hard floor in your bare feet weight evenly distributed for 10 minutes should do it. Once you have an active signal close your eye lids and turn all your attention on that signal feel it, focus on it. How do you focus on it? Same way you focus on an external object. As a baby you had to learn to focus your eyes to see the external world. Same process apply your self to the task or suffer for ever, your choice.
What you are going to see depends on what's wrong. Simply allowing the pain signal to be processed and getting your active mind out of the way of your built in healing system could solve the problem. The main problem is that healing system is limited, it cannot line up ripped muscles or change the tension of muscles that are locked. So you are going to have to do what ever is required. Once ripped muscles are lined up your healing system fuses them back together. In a very real sense you do not heal anything you merely assist a built in system to do it's job.
How long? How much damage has been done? How many complications are there? How much time and effort do you apply to the task?
In general this equation is the best description
number of injuries + severity of injuries + elapsed time - effort = healed
Fresh injuries can be fix real fast if you know what you are doing. Old injuries seem to take forever. When I learned this process I was 100% crunched, take a sheet of paper and hold it vertically twist the top one direction and the bottom in the other. While maintaining the twist gently crush it into a ball. Smooth it out flat, see all those lines, that's what I would of looked like from injuries and complications. 23 years later and I have not fixed everything yet.