Keeping motivated

How do you keep yourself motivated and on a schedule to pump? I feel like things keep getting in the way. Every weekend I have a lot of things to do and I forget to pump and when I look at the clock it’s always way past time for me to pump. I’ve been working on trying to make that better but it just keeps happening and my supply is seriously suffering because of it. It’s gotten to the point now that seeing the low supply has me feeling upset and frustrated and I feel like I’m just ready to quit 😭😭😭