so i was playing minecraft later i was told to go outside and for a bit so i did i returned

and signed in to my account on the computer and was not in normal minecraft 

but in beta 

yesterday we put snapshots  on my aunts account on the same computer

but different account it did not seem to affect me but now i am in beta with new enties 

not world old Hight, depth and generation (this was because no experemental gameplay i later found out ) how do i fix i want to go on my relm but cant

today i am on beta on my laptop i can not get out the insider app says i am too young  and deleting the game did not help