I think that it wasn’t smart to get rid of his belief because they are just throwing away everything that they belief in a moment. To belief something is to trust it and confidence in that belief instead of like hey I believe in this and then the next day hey I’m part of this belief now, and then the next day hey I’m part of this belief now and so on. To stay to your belief is doing what you need to for that belief and not give it up all the time I mean you can change beliefs over time but not all the time like (BAM) part of another belief. Conor is trying to stay true to his mom that she will make it through even though the others belief that she won’t and Conor is like I don’t need you here to his dad. Also he thinks that his Grandma is the worst and she should leave him be and stuff like that.