How to Trust Yourself More When You Fuck Up

You have to stop comforting yourself when you fuck something up that you want. Like if you make a promise and you break it, show yourself by putting an effort to make up for it. If you agreed to be somewhere at a certain time, but you're just like, eh, like you didn't prioritize your time good enough. So my tip with keeping promises to yourself basically is just look at when I am about to not do something I told myself I was going to do. Would I accept that excuse from someone else?