Startup Idea: Custom Audio Alarm Clock App

Startup idea to develop an audio-based app that caters to individuals with social anxiety. The app will function as an mp3-alarm clock with diverse custom playlist and alarm settings, including a feature to automatically stop playing at a set time.

I have issues with social anxiety, so I would like to listen to ebooks at night to help me with this issue, but I would not like them to play all night. I want them to cut off, before the a.m so know one that I live with can hear what I am listening to. I need an app, that is like an mp3-alarm clock, with all type of custom playlist and alarm settings. I've looked around, this does not exist, it seems as if it would be easy to make.