How do i get out if the other account?? – The X – Scavenger Hunt Weekly Review

So, i had my own account in the X and then my cousin asked me to use her code, so i did, and now i’m stuck in her account and can’t get out, i have tried deleting and redownloading the app but it always brings me back to her account, help me please!
Review by little.miss.muffet. on The X – Scavenger Hunt Weekly.