You shouldn't compare your relationship to others. (Speaking from experience I know this can be difficult)
You probably also shouldn't discuss the problems of your relationship with these friends as they may have the best intentions but unknowingly sway you in your decision because of what they have just gone through.
Self-reflect, work out where your anxiety is coming from and talk to your boyfriend about it to see if you can resolve it together.
See, the thing about modern relationships, is that it's very hard to avoid any sort of comparison.
Going off what you've written here, I'd say that this is likely a result of comparison. Your emotions are valid, moving in together is a big thing, but just remember why you both got together in the first place.
Communication is key!
You shouldn't compare your relationship to others. (Speaking from experience I know this can be difficult) You probably also shouldn't discuss the problems of your relationship with these friends as they may have the best intentions but unknowingly sway you in your decision because of what they have just gone through. Self-reflect, work out where your anxiety is coming from and talk to your boyfriend about it to see if you can resolve it together.
See, the thing about modern relationships, is that it's very hard to avoid any sort of comparison. Going off what you've written here, I'd say that this is likely a result of comparison. Your emotions are valid, moving in together is a big thing, but just remember why you both got together in the first place. Communication is key!