You would be incorrect that I checked your profile to determine your age; I did not.  I simply guessed (by your behavior, the "but I don't want to do it by myself" sounded childish, so I guessed correctly).

Let's tone down what shouldn't be aggressive nor angry.  I am not trying to create tensions, either.  I most certainly have not threatened you, nor do I mean to do so.

If you find it "difficult to remove what you have added to the map," that is a problem.  It actually does mean that you should not be adding things to the map in the first place (if you are unable or unwilling to remove them, especially if they are in error, and very especially if they are the same type of error data which you have entered before as an error, then you did it again).

Your error data have been removed by another OSM volunteer (IIVQ).  Please:  do not add more "rail data" to OSM.