Well those are the issues when you turn the Camera on yourself; you have to come up with a new topic all the time and be able to say something relevant. If you want to continue to make videos you could try and record events and perhaps combine this with commentary of some sort. I try to find local events like Motocross, Demo derbies, bands, etc that I can get into for free. Not saying this is what you should do, but this may help to learn how to make videos and eventually develop your own style, niche and audience. Do keep in mind that you can't just record everywhere and when in doubt simply ask for permission and always publish your own material. Good luck!