If you're making Lets Plays, it should be okay if your video quality is good and blah blah blah. As long as you're entertaining or have a good personality, a daily schedule is king.
Let's say you're someone like MatPat from game theory or Angry Joe. These guys make very intense, detailed content that would wear them out if it were to be done every day.
If you're making longer, creative and unique content that takes a lot of time to work on, keep a schedule that works for you. Weekly, bi-weekly, hopefully not monthly. Good luck!