Quod licet Iovi, non licet bovi. Just because your senior colleagues can play ping pong during lunch, it does not automatically mean that you can, too.
Sometimes the company provides its employees an opportunity to play, and then resents that they use it too much -- even if the "recommended amount" was never announced. People are not always rational. Maybe your boss originally imagined that you all will play ping pong only after your working hours, or only once in a week; and then you do it almost every day, and the boss is not happy with that. You don't know, unless you ask explicitly; but even then, people sometimes change their minds later.
Your senior colleagues have better estimates what they can do, how much they can risk making the boss angry, and how much the company needs them. Also they already have an image within the company as "people who did successfully this and that". You don't. Yet.
So I would recommend waiting a month or two, and then starting slowly. Or, in current situation, to slow down for a few weeks. Of course, your willingness to risk depends on how much you need this specific job. If you don't care much, you can risk more.