Wont run the correct py file

I have two files: scratch.py and scratch_1.py. When I try to run the second python file, it keeps on running the first python file. How do I change it so that when I click on the second file, it will run the right file? And when I flip through multiple py files, the configurations will automatically change so I can run different files seamlessly? It use to work fine but stopped suddenly! I even tried re downloading pycharm!