Lost in ubuntu swirling for 15 characters in this title

Lost in ubuntu swirling for 15 characters in this title

Decided to make the switch from windows. Got this ubuntu OS that
'everybody' was raving about. IM LOST IN THE SAUCE!!! The software is not
new user friendly. Can someone maybe point me to a site that explains all
the simple and taken for granted tasks that I used to be able to do on
that other system?
Simple stuff like updates, Where to install new fonts (cause ubuntu fonts
are VERY limited), How the hell do I get a simple media player hat actual
works and plays mp3,4,mpegs, avi, wmv.
And why was the video guide that came loaded on the software so limited?
How to write, how to make a spread sheet, how to do a power point...if you
want to know anything else- yeah well tuff cookies.
Im frustrated, not mad(yet), glad to be away from MS's reign on the
universe.... now i just want to be able to use it.
Thanks, Den