Your mind is going to think intrusive thoughts. That is simply what minds do, it is not a reflection of who you are or what you actually want.
When an intrusive thought comes in, which it will, there are some things we do automatically which do not help. In fact, they make the situation worse.
What do you do when an intrusive thought comes in?
Tomorrow you will come back for an extra special surprise, because day twenty one definitely needs acknowledgment.