Chosen Solution
please help how do i remove the sim card to put a different one in
It’s under the battery cover, which is a common placement point on these lifeline provider phones. Looks to be a Micro SIM as well, since they also tend to be one generation behind phones everyone else buys. To remove it, you use your finger and pull it out. If the SIM card is being replaced due to age (and will be deactivated), you can always use a tool like tweezers once you have a solid grip on the SIM but this may destroy your card beyond repair.
Look for a hole along the edges about the size of the end of a paperclip. Insert a paperclip and push gently to open the sim compartment.