The problem is that you will most likely end up banned. Someone on here mentioned that they track your MAC address. I could be wrong, but I don't think that's true.
The reason why it will actually not work is because of your conversion rates and IP addresses.
Firstly, if you are going to get clicks, you also have to have a bunch of people who are not clicking. Otherwise, your conversion rate will be too high and Google will know something is up. This could be avoided though if you were to simulate other regular traffic going to the website as well.
However, the biggest issue I would think is the proxies. Let's say if you were using public proxies.. They will have most likely already have been heavily abused and I'm sure there are ways Google can tell they are proxies. Probably some super techy reasons that I can't really think of right now or explain. But one reason could be because of the amount of people using them on Google services. Like for example, try searching a few times on Google with the public proxy and you'll probably notice you will be forced to enter a capcha since there are so many people already trying to using softwares like Scrapebox with scrape information from Google. Not to mention the people who are already trying to do the same thing you are doing with ads.
I would think private proxies would be a bit too expensive for the amount of money you are going to make. Plus after you click an ad, it's not like you're going to be able to continue using them again. Plus, at some point in time, I'm sure that private proxy was abused.
Anyways, you can try it. But I would be cautious in using your real information on Google Adsense because I think your account will get banned.
One thing I forgot to mention to is... retention views. Google will probably know someone is up if those people clicking ads (or adding to your view account) are not watching the video, or subscribing/liking/etc.
Good luck!