If you have to work with a tool you do not understand how to use, chances
are you are going to hate that tool!
I will be the first to agree that Word Help could be designed better and
have a better search function, but do not expect the on-line help to take the
place of a tutorial.

You should spend some time learning the basics, and maybe you won't hate it
anymore...
Go here for the basics:
  http://www.shaunakelly.com/word/concepts/introduction/index.html
and here for lots of materials, tips and tricks:
  http://word.mvps.org/FAQs/General.htm

You can also use Google to look for all kinds of tutorials.

Finally, next time you have a question, it would be useful to know the Word
version you are using.... The answers will be more explicit and useful...

Good luck.