Hello,

We welcome any map error reports that you submit using the OpenStreetMap “Map Notes” function.

Note that what you write here is public and this function is not meant to be used for private notetaking. Please refer to: https://wiki.openstreetmap.org/wiki/Notes

I recommend you check out this service built on top of OSM where you can create your own layers and labels on top and even share it with your friends:
https://wiki.openstreetmap.org/wiki/uMap

Best regards