can I have more than 1 e mail address, if so how do I get it?

Yes, you can

Go to http://www.yahoo.com/help

Click registration

Sign out of your current Yahoo address first, so it doesnt oddly link them somehow.

You can have as many e-mail addresses as you want, including separate 'alias' addresses tied to the primary account.

If you want a BRAND NEW account with all new details, sign out of your account, then on the new sign-in page, click 'Create a New Account' or click this link and fill out the form to create a new account. https://edit.yahoo.com/registration?.int%85

You can also go to http://www.yahoo.com/ to click 'Sign up'.

You can then import your Contacts list from the old account to keep them. Mail will go to either account, but they are separate. Sign out of one to sign in again at the other. Remember to sign in every six months, or the account goes dormant.

HINT: Do not close an old account until you have imported your Contacts list and forwarded any important saved mails.

If you open an ALIAS account you will not lose anything (contacts, address list, saved mails, folders.) If someone sends mail to the old e-mail address, it will go to the same Inbox so you don't lose any messages. There is then a drop-down menu at the right in From: where you can choose which address to use to send mail. Use it just as you would your primary address (which of course you can still use). You can send and receive email from either address from the same Inbox.

http://edit.yahoo.com/config/list_alias