First, it is definitely not embarrassing to admit, and the answer may be overwhelming, but you can customize nearly everything. One of the simpler things is to

First, it is definitely not embarrassing to admit, and the answer may be overwhelming, but you can customize nearly everything. One of the simpler things is to customize the look and feel. E.g. you could try out different desktop experiences and WMs (window managers). Most of them are just an `apt-get` away and when you logout and login again you can choose and try out a different desktop.