Hi and welcome to OSM. This works fine. Here is a good resource on JOSM - https://learnosm.org/en/josm/

the name field is for the school's actual name, not to be used to describe feature.

What are you trying to achieve by naming buildings "Q"? Please stop putting funnys text in the name field for features. This is very bad and kindly avoid it. Read name=*

Please do not just put any funny text in the name field for features. This is very bad and kindly avoid it. Read name=*

thank you :), happy mapping

Seems no visible strutures exist around node, may be take a look again. Also use ISO8601 for dates i.e. yyyy-mm-dd

*public transport relations

Please avoid using ALL CAPS and add new data to relations

Please do not add duplicates and modify existing features serving unique purposes such as changing a bus stop to market place.

Please avoid using ALL CAPS for names and also adding information that is not relevant. Also don't mess up with relations. LearnOSM - https://learnosm.org/en/beginner/ is good learning resource for getting started

Also a good changeset comment describes briefly what you mapped, see examples osm.wiki/Good_changeset_comments#Examples

Welcome to OSM, this should help you with tracing rectangular building appropriately https://learnosm.org/en/hot-tips/tracing-rectangular-buildings/

Oh, Thanks :) Happy mapping!

No, you are right. I mean you were quick in adding it :) This is fine. May be 'U2/U5' in the name? doesn't make much difference.

That was fast for Reinprechsdorfer Straße for U2+U5 :)

Please see examples of Changeset comments osm.wiki/Good_changeset_comments#Examples

You might want to review the connectivity of "Dr. Nyaho Nyaho-Tamakloe Street"

S'il te plait n'utlise pas les hashtags seulement. Regarder les exemples de bons commaintaires osm.wiki/FR:Bons_commentaires_de_groupe_de_modifications merci

I have moved move name to way/617510970 and reused the node here node/7255943096/history. You can further validate the name of the soccer field on the ground, thanks

Please kindly avoid mapping trees in a grassland, parking entrances should be connected to a highway=service... Also take note of imagery offsets https://learnosm.org/en/josm/correcting-imagery-offset/