Correct me if I'm wrong but using a new address will not making tracking impossible nor difficult. Every transaction you receive will eventually be used as an input for another outgoing transaction.
You, as the owner of an address, know that address is yours. For a observer on the blockchain, he doesn't know the outgoing transaction to another address is owned by the same person or sent to another stranger. It's easy to track transactions on blockchain when even when you only use an address once, but it is difficult to assess ownership of to a person.
So whether you make use of a new address or not, the link is there for anybody to follow. Only way to stop tracking is to break that link between your inputs and outputs and only way to do that is to use a mixer of some sorts.
True, a mixer stops someone tracking you. The mixer justs swap your bitcoin trail with a large group of people's coin. You could in theory inherit coins with worse history than yours, like bitcoin tied to illegal acitivity.
