https://lifehacker.com/how-to-convince-yourself-to-keep-going-1836858040
The article suggests that the key to convincing yourself to keep going is to change the way you talk to yourself. Specifically, it recommends using second-person self-talk.
Use "You" Instead of "I"
Research has shown that people who use "you" when they talk to themselves during difficult tasks perform better than those who use "I." This is because using "you" helps to create psychological distance, which allows you to see the situation more objectively and with less emotion. It's like you're coaching yourself from the sidelines.