problem with messege to player on coldown with randomizer

i'm trying to make a procedure that sends message to a player(that wears special helmet or holds an item) in some time like a hour or stuff (made time shorter to tast) and with random text (made texts simple and with command /say , normally i'm using it with another mod but changed for tests) , i tried it before with another item at first time it worked perfectly , then i copied it and started adding stuffs and for one class thought would be cool if i add other texts if he has invisibilty potion and it didn't worked, i started testing other parts and they don't work too , now i'm stuck with this, if anyone has idea how to fix it i'd be very happy to listen (only idea rn that i have is that maybe on player tick it checks every and i don't know , i'll try to change that if item in main hand was at first and then all that with coldown)