Adding to the warm welcome of ExoMal I'd like to offer some helpful articles in the OpenStreetMap wiki and the invitation to our caht rooms and/or community:

https://learnosm.org/en/beginner/
https://wiki.openstreetmap.org/wiki/Good_practice
https://wiki.openstreetmap.org/wiki/How_to_map_a
https://wiki.openstreetmap.org/wiki/Map_Features
https://wiki.openstreetmap.org/wiki/Contact_channels#Chats.2Fmessengers
https://wiki.openstreetmap.org/wiki/Changeset#Geographical_size_of_changesets