Having your own domain + web site will work much better to generate such money from adsense... Now-a-days web hosting is cheap.. you can get for less than 4-5 dollars per month. For start, go start a blog with blogger.com now (and write articles on how to make a money-earning website as you go along).. and put adsense there
Whats with people making blogs about earning money on adsense, seriously it's pretty overrated at this point. Thats what Digital Point forums are for. You learned all of your initial stuff from here so why not make posts here instead and give DP some $ back.
adsense & internet advertising can be a great way to make money, and lots of it, but it isn't reliable, and it generally isn't fast. there are advantages to free hosts (namely, avoiding the sandbox, not needing to know html & be able to come out with a layout in the case of blogging, etc), but for the most part they're outweighed by the flexibility of real hosting and real domains. to answer your primary question: yes, it's possible to get to that amount of money/day in the timeframe you're talking about, but I wouldn't rely on being able to do so.