Keep getting password error only in app store

Explain this to me I’ve been a droid user most my life, but I thought I’d give us a try. It’s not so easy. I know what my password is for Apple. I know what my iCloud password is. I can log into this page no problem obviously I’ve logged into my phone but when I go to the App Store and ask me for my password, it says it’s wrong. What the heck is going on here. I have random issues with it freezing during editing, better videos and can only hard reboot. Sometimes my microphone works for text to speech sometimes it doesn’t