Is it bad to say this at my training school

So I've started the job app process. Obviously I told my mentor and HOD as that's the process here. But only thing was earlier today another staff member said as I was walking out my lesson "how was the lesson" j said "all fine just the odd few messing around as usual" she then said "ah okay. So anyway have you started the application process now for jobs" I said yes. And she said "what about here?" Ans I stupidly said "I think it's just the behaviour. Maybe I'm not a tough cookie like you all" 

Did I put my foot in it a bit there with that? I mean all the staff know it's an issue since covid but it's just gotten more of a problem lately and staff say it all the time. Im wondering if I messed up?