Help! I can't get back to my claim, which is very far from spawn, and I also can't use /back or /l spawn to get there, because I tried both and /back teleported me to the wrong place. I also didn't set /l spawn. I don't know how to unclaim this claim or teleport back there. Would you please help me?

do /l, find the land name, then right click and click teleport to spawn