I would like to revoke my previous will. Do I need an attorney or can I get it notorized.

In most states (and each state can can be different), you can physically destroy an original Will by tearing it up and then it is considered revoked.  You could also cross through the document and write "revoked" on it, sign it and date it.    In both cases, you would be best off if you do this in front of two witnesses and have the witnesses sign something indicating they were there at the time you reovked the Will.  A notary should not be necessary.  Finally, you woud be best off if you also prepare a new Will that provides for all of your current wishes as opposed to revoking an old Will and relying on your state law for how your property would pass if you die without a valid Will.