advance port forwarding and ip help needed thx( ipv4 & ipv6 problems)

[Sheng!]

hi,i want to port forward a game,i had many games protforwarded on my computer before i went on vacation

minecraft
tf2
unturned
warzone2100

etc....

but when i came back my public ip adress changed from a normal ipv4 (example:34.56.123.56)
to a ipv6 one (example:2406:3003:201d:93:2e0:4cff:fe68:4)

i have so many problems with this as all my servers for my portforwarded games have crashed and burned because of this

i made static ip for my computer in my home network before and iv mixed and changed it but still dosent work...my ip for public is still in ipv6 please help someone good in networking science

i know its not my firewall iv been turning firewall off and on neither works

much thanks,i really want my servers to be back online please thanks

<3