Ya mean likeeeeee

Positive mental attitude is a key component of healing, I do believe that, but it cannot heal physical trauma or disease on its own. There is no reliable evidence of that. It can be used to reduce pain sensations and can have benefits on the immune system though. What it won't do is cure you of a virus, fix a broken leg, cure cancer, etc. It can just increase your chances of a better outcome, even if only by a very small margin.

Yeah but it's free and they can't make any money off of it.

From my own personal experiences, I know that some healing can be done.

The mind is a powerful thing. I think one can train oneself to do incredible things.

Yes, you can heal yourself. Mind has amazing power, once we learn how to harness and use it for our own wellbeing.

It is possible to make some progress on your own, but professional help can usually provide more benefit

depends on whats ailing them