If you make long videos, one video a day is too much in my opinion, especially if you're just starting out and don't have anyone to help you. I create long videos for YouTube twice a week, working in batches. One task at a time for each group of videos. I spend most of my time finding a working idea and packaging (title, thumbnail, hook), because if the topic isn't interesting and people don't click, everything else is useless. Whenever possible, I record videos (A roll) only when I'm rested and energetic.