What do you guys use to make something happen once after an event tick?

Theres 2 examples that are bugging up for me.

Both for online:

  1. When you guess a word correctly you tell the server “true”.
    You keep checking if the server has “true”, if it does then get points, play animation and set turn to number 2 from 1.

Now it is going like turn 1 2 1 2 instead of doing it once.

  1. When you send a message on chat, make a sound play for everyone to hear.
    The tick makes it play fast so the sound is really bad lol.