Screen Not Working Properly, Only the Center of the Screen Works

Only the center of my iPhone screen is responding to touch, I can’t use the edges of my screen. About the last centimeter from the edge of the screen is completely not responding to touch. But my phone is still showing the display like normal.

I tried force resetting it (cause I couldn’t swipe the bar to restart my phone. I was almost locked out since the number pad is so spread out. But I noticed that if I pressed really heard on the screen and held my finger there it would sometimes register that I am using the screen. But once I was into my unlocked phone holding down what application I wanted to use or what key I wanted to press no longer worked. I would really appreciate some help or any feedback on why I have this problem. I use my phone for everything and haven’t backed it up in a while. So this is making me really anxious I could loose everything on my phone.

Thank You