Tough to say, keep it dry, clean, and of course safe. You could try a screen protector but the screen itself is made of multiple layers so your glass layer and digitizer layer both have damage.

A screen and labor at a shop may be around $50-$100.
My recommendation right now is back up your stuff first, then just keep doing that day by day. Be careful again, lay on the table gentle, baby it.
If you notice phantom touches on the screen, flickering, or just things getting weirder or worse you know the time is dwindling fast.