If you really wanna make it big with youtube videos, the quality put in needs to be substantial (especially when there are so many competitors out there doing the same thing). Either that or you need to have tremendous amounts of charisma. If I were you, I'd wait until you have enough resources to make it count, at the moment the videos are more for yourself than other people.
Focus on a cost and benefit system, the benefits need to outweigh the cost. Do what you can in regards to that, what you do is upto you.