Best practices
There are lots of ways you can use this card, but take advantage of the fact that it's a physical blocker. Once you lock the apps using the card, you put/leave the card in a location other than where you are, making it harder for you to unlock them. I leave mine in my office and shut the door OR I leave it downstairs. Then when I go to bed and automatically reach for my phone (as we often do) the phone reminds me (with the message to the right) that the apps are locked.
This is where the beauty of our ADHD brains comes in handy, because we have a tendency to let go of things if they take too many steps. If I'm lying in bed and reach for my phone, only to be reminded that I locked the apps, I'd have to walk all the way to another room to get the card to unlock it and that's just too hard. And guess what? I get more sleep and that's a good thing, in part because adequate rest is the number one non-medicinal treatment for ADHD.
Try the cards. Get more sleep.