Also, in another screen, I’m trying to include a checkbox to keep track of the completed workouts. Same thing as i said before how can i get the app to remember this things? I’m having a hard time figuring out how variables and objects work…
You’re using cloud variables which require Firebase. This is a powerful, flexible and difficult way to approach data storage in Thunkable. Do you have a need for Firebase? If not, and especially if you will be the only person using your app, I recommend using a local Data Source or Google Sheets (if you need online access to that data; just know that retrieving data from Google Sheets can be delayed).
You can learn more about various data sources in the documentation here.