How do I keep the aspect ratio of my gui when I switch monitors?

For me, my roblox games start up on my laptop screen. Then I move them over to my monitor, since it's bigger. However, when I do this, the guis are messed up and stuff is overlapping other stuff. I used UIAspectRatioConstraint but it doesn't help, it only keeps it on the screen. Is there any way to fix this?

Use a UIAspectRatio constraint and change the constraint to your liking :)