I made a new apple account but every time I try to update any apps it says I need go put in my old account password and every time I do it says it's incorrect

All apps are tied to the Apple ID they are purchased with and is not transferable.

You have to use the old Apple ID and Password to update app.

When downloading Apps from the Apps store will always follow the Apple id login. Please sign in with the apple id in which you used when downloading the apps to enable you to then update listed app.

Good luck