Why is my keyboard not working?

I purchased a Google pixel 5a 5g through you and the keyboard seems to not type what I press. I've noticed the screen in general is a bit glitchy. I tried restarting my phone and factory resetting it to no avail. I think I need a new screen. I did not have these problems before and have not dropped since replacing the screen or let the phone overheat. I received the product on Monday of this week.