We often tell ourselves half truths to get out of doing hard or boring activities. It's nothing to be ashamed of, we all have the infamous
living in our heads.
"Yeah but I've done so well already..."
"Yeah but I need to do this other thing first"
"Yeah but HE hasn't done it yet either..."
Tell the Yeah Buts to go away. Tell them "Yeah but I want to finish this, so I will."
Talk back with your own Yeah, buts.