Welcome to Wikitree, Susan! Don't get flustered. Everyone has a learning period. You will be getting a message soon on your main page at the bottom under the comments section. The first messages will be from your official 'greeter' and then probably several others from 'mentors' and the like. They will be giving you lots of information on how and where to get plenty of help. Melanie has already said 'hello' so look for more from us.
And on we go...