If you start a thread about your booting issue (what does the red "failed"
message appear next to), I'm sure someone here can help you with it.
If you are frustrated the menu bar and other interface features, then your
problem is not with Trisquel but with the desktop environment, GNOME. (Ubuntu
now uses GNOME as its default too, by the way.) You can use a different
desktop environment by installing it, clicking on the little Trisquel logo
near your name at the login screen, and selecting it. If you want to use
Ubuntu's previous default, for example, run $ sudo apt-get install unityand
select Unity when you log in.
It will probably be easier to change the details in Trisquel that you are
unhappy with than switching to a new distro. However, if you do want to stop
using Trisquel, Debian or Parabola would both be viable options.
I'm using Parabola on my second laptop and love it, but it is not very
beginner friendly. It does not have a graphical installer, and by default it
has no desktop environment, so you'll have to already know which desktop
environment you want and install it from the command line.
Debian would be much easier to get started with, as it has a graphical
installer. Just make sure that after installing you edit
\etc\apt\sources.list$ sudo nano \etc\apt\sources.list and delete the words
"non-free" and "contrib" wherever they appear. This will remove the non-free
repositories from the package manager, so you won't have to worry about
accidentally installing non-free software.