Verified answer

First of all CONGRATS!

Second.... you could consider the time that you were doing it. If it was at midnight or some ridiculous hour in the morning when even the birds are asleep, then I would be that person knowing on the wall too.

A solution to this is to ask around and get chatty with your neighbors. Make friends with them and get to know whether they work night shifts or do shift work, or whether they babysit little grand kids or whether their boss drops in for dinner. Those sort of things are good to be mindful of and be a bit a bit considerate.

Other than that it is your room and your life. I just think that you should think about your neighbors as well. Maybe he/she was just jealous or tired! Always put yourself in their shoes, if they were doing that would you feel disgusted or revolted? Would you knock on the wall?

Good luck and have a great "time"

Don't worry about it! It's a good thing that you express yourself so well. You haven't done anything wrong you should be allowed to do what you want in your own appartment! Walk around with your head held high - the mystery person who knocked on the wall probably isn't getting any so was just jealous of the sounds you were making ;)

Soon you will be getting nasty notes slipped under your door.