Do you agree that one can overcome anything will a strong will (details inside)

Some people believe that every anguish, from pain, depression, to mental illness, eventually boils down to one’s unable to cope with their situation. It is their problem because they think it is much more serious that it really is. And because they think it is a problem, it affects their mindset, and makes their condition worse.

Therefore, one has to adopt the mindset that nothing should be a problem. They have to keep a strong mind in every situation. If you are in pain, for example, and try not to think of it as a pain, it will eventually go away.

Do you agree with this mentality?