My oh my, this is certainly an interesting thread. I'd comment more on your numerous spelling and grammatical errors, but the key thing you have to know is that words are the only way we can know how you tick. If your typing away a mile a minute, thinking of what to write before you hit the keys, what you write will be jumbled, schizophrenic, and have loads of run-on sentences. I got the basic jist of what you were attempting to say, but if I can't tell what you're trying to say, I can't respond properly. I'd love to help you, but I can't help you if I don't know, specifically, what you need help with.
As for the problem...eh, just focus on quality. I'm a firm believer of the "hook, line, sinker" method in mediums, which is effectively hook them in, KEEP them in, and have them leave your videos/books/what-have-you enlightened. If you're just doing let's plays, reviews, and whatever else has been done on youtube millions of times, then the hook is something unique to you ("Why should I watch your video?"), the line is how entertaining you are ("Why should I CONTINUE watching your video?"), and the sinker is what they got from it "Why should I continue watching your videos?"). Since Youtube is saturated as fuck, your biggest thing is to get this system down. You can advertise, but realize subscribers are not entirely within your power to get. Focus on quality, and the subs will come when they come. The hook is what gets them, the line is what keeps them, and the sinker is what makes sure they stay for awhile. Remember this. And also work on your grammatical understanding of English