When your going to do youtube you need to have a plan. What is your channel going to be about, what content will it feature, how many times a week are you going to upload.
These are the basic things for a youtube channel, if you already ran out of ideas then you clearly are not ready yet.
Take a good look at your channel and ask yourself the questions i mentioned. Once you have a clear mind and know what and how you want to do it then go at it again.