Is there a mobile phone lock app?

I wanted to know if there's something like an app that locks the phone for a while, because I distract myself with it permanently and prefer to watch Netflix instead of making a presentation.

I know it sounds ridiculous, but I would like to quit and I think it would help me to move forward. XD

Just switch off? Otherwise, there are certain applications in the store, where you can set times z. For example: offtime

I have a great site where some apps are presented. Look at it, maybe you can find what you are looking for!

https://hochschulteam-deutschland.de/2016/03/03/top-6-apps-die-dich-vor-ablenkung-schuetzen/

-The dove

Thanks and I could do that but I still wanted to know if it could be otherwise

Otherwise there are certain articles via search function: https://www.sueddeutsche.de/digital/digital-detox-diese-fuenf-apps-helfen-bei-der-smartphone-auszeit-1.3783179 only the question of how far the applications are still available or current.