I can see you are pretty new to the game, its important to follow our rules here They can be read in game too.
There are antag roles you can select to be randomly picked for in your character selection.
With regards to the hitting people and things as the clown, the clown does mess about and do pranks with people but just straight up attacking people is moving more in to the self antagonism side of it.
I’ll remove the ban now, just keep in mind moving forward to try role play first and not randomly attack people, its not a deathmatch game.