1. Don't tell anybody because it will give you a sense of achievement and you will loose your motivation.

2. Do one thing at a time, like next 20 days for x project/habit/task.

3. Do't just plan it will give you sense of relief that you have done enough instead identify risks like what I'll do if I spent time on Facebook instead of doing x task and take action for the same.

4. Choose small task

5. Do it daily even for 10 min.