Your will does not take effect until you die. You can create a new will or revoke or amend an existing will up until your death.
A will remains valid until properly revoked or superseded. Revoking your will must be done very carefully. Most state laws require that the will be revoked by a subsequent instrument (a new will) or by a physical act (e.g., destroying or defacing it). This means the will must either be burned, torn, or canceled with the intent to revoke. You might, for example, write REVOKED across the will and sign and date the revocation. You have to be careful that there are no copies out there that somebody might mistakenly (or on purpose!) try to probate.
You can amend (change) your will by executing a codicil.A codicil is a separate, written, and formally executed document that becomes part of your will. More specifically, a codicil is a supplement or addition to a will that explains, modifies, or revokes a previous will provision or that adds an additional provision. A codicil generally should be used only for minor changes to your will. You should execute a new will if there are many changes or a major change.
A codicil should generally be executed with the same formalities as required for a will. In general, the codicil must be signed, dated, witnessed and notarized in accordance with the laws of Louisiana. A codicil to an olographic (hand-written) can also be entirely hand-written, dated and signed.
The codicil should be attached to the will it is amending. Be sure to draft, execute, and attach a copy of the codicil to each copy of your will.
Louisiana provides that provisions in a will may be revoked or impacted upon marriage or divorce, or the birth of a child. It is generally a good practice to review your will and make changes as needed for any major changes in your life.