We're sorry about the trouble with Photoshop. Would you mind sharing the exact version of Photoshop you're using along with your computers macOS version? Is the app getting stuck on the loading screen? If yes, does it show you component it's trying to load?
If you're working on macOS Catalina or macOS Big Sur, please go to the System Preferences for your Mac, then Security and Privacy, then select the Privacy tab. Then select Accessibility from the list to the left & check if Photoshop is added to the list with a check mark in front of it. If Photoshop is not a part of the list, please add it by unlocking the window first using the lock at the bottom left, then clicking the + icon & navigating to the Applications folder. Also, grant permissions to Photoshop under Full disk access located in the same list as Accessibility. Once done, restart the Mac & check if it helps.