Hourly reminders

Hey Hunters! I've been looking for a specific tool for a while: I'm a person that can't really keep up with good habits. I need some sort of reminder for a couple of things. I would love to be able to set up hourly reminders, or daily reminders on specific hours. I want to remind myself every half an hour to drink water. Every hour to stand up and stretch. Every 2 hours to take a walk and go to the window to let my eyes rest for a while. Things like that. Did you ever come across any app that will work SPECIFICALLY on windows? (mobile notifications are my nightmares) Would love to hear your recommendations.