Reverse the Order
When you commit or set a goal, you are full of energy, hope, and faith.
As you execute your commitment, you run smack into fear, anxiety. The work consumes internal resources, and soon you are tired.
When you feel like giving up. You have two choices
You stop, or You go.
Each decision has consequences.
What if you changed the order? What if you told yourself all of the horrible things that could happen first?
Get them out of the way, push through them, dismiss them.
Then when you are doing the work, allow yourself to be full of energy, hope, and faith.
Try it and let me know how it goes.