This smooth plate isn’t very smooth any more, so future prints will have problems adhering or will have marks in their surface finish.
When you’re removing a print from a build plate, please be careful to not scrape up the build plate. The best way to remove a print is to flex the build plate and get the print to pop off. If that doesn’t work, try using a plastic tool to lift it off.
My personal favorites are the little black plastic razor blades (you can find more of these in the wooden tool table drawers), but the custom-printed orange scraper works well too. The plastic spatulas may work.
Don’t use too much downwards pressure. What you’re trying to do is slip the spatula edge just under the print and lift it off with sideways pressure.
