Question about Youtube promotions and adsense!?

[Jake]

Okay I'll start off with explaining what my intentions are, I'm planning to start making youtube videos, and I have made a few, and ended up getting no views at all. I wouldn't say that they're horrible, they were pretty good quality and I was expecting at least a few views but they didn't so I ended up deleting them.
So I did some research and I found out about promoting your video and some google ads or something of that sort.
Anyway...
I'm just trying to attract a small audience for now, not a big amount of people. I'll honestly be happy with even 100 views per video or 100 subscribers anything works with me.
My question is, how does this promotion and AD thing work?
Apparently you could pay per view with your budget that you got from the promotion or the AD, but I don't get how the whole thing works, also I saw somewhere something that has to do with a 30 second video, and a video less than a minute as a promotion or an AD.
So I would be really thankful if someone could simplify it for me, explain it to me like you would explain to a 6th grader, since I just could NOT understand anything that I managed to find about this subject.
Also here's an example let's say I paid $40 as my budget for this promotion thing, and I would pay from that 10 cents per view. How would that affect me, and what other ways is there?

PS:
I'm not hungry for views or anything, I know views mean nothing, I'm just trying to attract an audience and get people's attention, and eventually get more subscribers if they like my videos and my style, since amusing people makes me happy I would like to put smile on people's faces which would obviously make me feel good.

Thanks in advance for the help !
Okay, I'm not talking about the ADs which pop up in peoples faces and bother them. I'm talking about paying youtube to promote your videos, in the sense which they put your video on the youtube main page for certain amount of time, until you get a certain amount of views depending on how much you pay, which is what I don't understand how exactly it works and if it's actually worth it.