How can I change my ID in a way that my mails keep coming to the new ID.......like forwarded to my new ID?

heyi.......I just want to change my ID becuase it's just not what I want anymore but I don't want to completly create a new account. I'll have to tell a lot of people my new ID which is a pain............please somebody tell me a way that I can just reset my ID and if possible please tell me the same thing for Gmail too.

The only way you can do it without having to open a new account is to add an extra address. If you would like to do that here is how to do it.
1. Click Options in the upper-right corner of your Mail page.
2. Under 鈥淢anagement鈥? click Mail Addresses.
3. In the 鈥淓xtra Email Address鈥?section, click Get Started.
4. Either type whatever new address you鈥檇 like to try (we鈥檒l tell you if it鈥檚 already taken), or use one of our suggestions on the right.
5. Click Choose.
Now your extra address appears in the list of Yahoo! Mail accounts shown on this page. To help prevent spamming, we only allow you to change your extra address twice in one year.
http://help.yahoo.com/l/us/yahoo/mail/or...
If you have the All New Mail
1. Click the options.
2. On the left had side click the accounts.
3. Go down to extra mail address.
4. Click the get started.

As for g-mail I don't believe there is a way to change the ID or e-mail address without opening a new account.