How long do you stick with a channel? Do you have an intro video for the non subscribers? Are you advertising new videos on twitter, facebook, instagram, etc? Are you cutting out all the boring slow time in the videos? People don't like slow.[DOUBLEPOST=1406060044,1406059840][/DOUBLEPOST]I agree with the above. Just keep at one channel, look at what you have done and how to make it better, THEN DO IT! It can take time to be discovered by people, by starting over, you are also starting the time you wait to be discovered.
Look at other channels and see what they are doing. What kinds of cuts do they make, what does their end screen look like, what does the layout of their front page look like. Is yours easy to navigate? How is your composition and lighting? Can people understand what you are saying? Are your videos too long?
It doesn't have to be expensive, I use cheap shop lights for lighting, and windows movie maker for editing (tho, for ease of use, I want something better, but it gets the job done).