one way is to prove to yourself why you need to get that attitude, and then make sure you wont turn back in your process of changing your attitude. (you put your own situation here)
another way is to cry yourself to sleep at night until you're like, "something's gotta change"(again, put your own situation here for example)
Explanation:
We can get through this, I believe that with the proper attention and care, you'll be able to overcome this challenge.
Because it has the same soothing properties that can increase the saliva in your mouth which lubricates the throat so it feels better
See, if you don't brush your teeth regularly, they will rot and your teeth are so close to your brain that it won't make your brain feel any good at all! It can cause a lot of diseases!