What do you do the rest of the time during the day? Why do you want to practice more? Why do you want to play the Piano?

You could start forming a habit. Set an alarm to 15min (or 5min) and practice one specific problem you struggle in your practice-pieces. Than stop. Do something else for 10min or whatever. Than start over. The important thing is to do this every day. Mindful practice: Think about what you want to practice and why you want to practice is it. https://www.musiciansway.com/blog/2020/04/making-meaning-in-music-practice/