what can i do when every unity game freeses?

every time when i play a unity game my game freeses.
its so annoying please help me.
and if its posible in dutch

Gooi je computer uit het raam, en koop een betere.

If the freeze is caused by your script and not a bug in Unity, you can discover where by using “Pause” in the monodevelop debugger. It will then show what line is currently being executed. It’s explained quite well here.