You are trying to do too much at once. The desire to do so much at once, plus letting yourself down due to high expectations is sabotaging yourself, and tiring your brain out too. We all need to take breaks and rest. Your brain is like a muscle. Try throwing out your todo list. Be bored for a while. Come back in a few months and pick one thing that you find really motivating.

You obviously do not want to actually do any of these things if you're not doing them already. You probably feel social pressure from HN to be super cool startup person.