My questions is not on the technical side, since obviously you can create an address in a very much anonymous way. However, when it comes to spending it or convert it into fiat or even when spending it on a legit shop online you have to leave an identity trace.
I know that with small transactions is fine, under the radar basically, but what happens with significant ammounts?
I am asking this because I intend to become rich in 4 or 5 weeks

You can retreat small amounts of money or you can pay taxes for this income, it is suitable to author right and if you have to play taxes for them them there is no problem. By the way, if you get rich don't forget us

Good luck with your project.