Missing one day is not what wrecks this. What wrecks it is what comes after — acting like you need a perfect restart date, cramming two days into one, or letting one miss become quitting. One bad day is one bad day.
Don't do these three things:
Do this: Admit the miss. Decide if yesterday's move still makes sense now. If yes — do it cleanly. If no — win today cleanly instead. Get back to work fast. No speech required.
You do not need more motivation. You need to start putting effort into the right things. One action a day. One day at a time. Five days. Post proof publicly — in the community and at home. Your family should know you're taking action.
⚠ Do not commit then back out. That's worse than not committing at all.