Overwhelming to do list?
Put it aside and make a new one with just three things on it.
If you finish those three, write another three.
I say “if” because our priorities change daily, so you may not finish those three and the next day the three may need to be different. This can happen when any of the three are large ongoing tasks. For myself, these could be user support or coding an application.
If you want to tighten the list to goals achievable that day, you could qualify the items. e.g. Two hours of user support; Answer 10 support requests; Code feature X; etc