My IUD is falling out. Anyone else dealing with this???

My doctor left the strings SO long when she put my IUD in. I went to another doctor to have a check up because something felt very off. she said that the strings were so long that it seemed like they were getting tangled in my tampons. Which slowly started to pull it out.

I have the copper IUD, I'm going to get it removed. I want to try getting the smallest IUD. since it turns out I also have a small uterus. Which is also part of the problem. Is it likely that one with fallout too?!? I'm just so stressed about this and not sure what to do.