Jack Placement to Change my Tire

Thank you, Both!!
I’m so terrified of making things worse. I read that I have to lift both front and back or that I risk breaking the cabin. Is front tire, btw. I’m so glad I don’t have to deal with those dual tires in back... yet!

Break the lug nuts loose before jacking. It's usually easier as well to do the final tightening once the jack is removed. Securely chock the diagonally opposite wheel.

For a rear tire, jacking the axle under the spring mount is always safe as that part is always carrying the weight. For the front it depends a bit more on the specific chassis, but it's usually not too tricky to figure out. One jack should suffice just fine.

Hopefully it goes without saying, but do not put any of your body parts under the vehicle while it's supported by the jack. If the jack should slip, they could get crushed, and that's not good for your health and well-being.

1 Jack, under the 'A' frame
or under the axel by the spring.
break the nut's torque prior to removing the Jack.