User blog:AdamSandler420/help my 13 year old brother got into my account

i did not know this but my 13 year old brother found out my password a year ago and so and went to dc wiki and posted something and got mad and then started vandalizing a few pages the reason i did not know about the post is he unfollowed it and i already told my parents (im 17) and he is now watched  when on the pc can i get unbanned because im trying to become a mod on a wiki and i cannot