I think my babysitter did something to make me lose my log in/files/library
when I clicked on the limewire shortcut on my desktop (as I usually do)
it asked me questions about installing limewire and showed me an id with my sitters initials and when it opened there were no songs in the library
how can I access my files /library

You need to say what operating system you use, to keep people from guessing.

This is probably why nooone has answered you.

Give details and you get details.

But I can tell you that unless your babysitter deleted the songs completely, there should be ways of getting them back.

BTW if she did delete them, then use your computer as little as possible until this is fixed