Hey ferl1985, welcome to Bluelight!
Just so you know, this isn't exactly the place for this sort of question, as this forum deals with Ecstasy pill testing...the place you wanna be is
Basic Drug Discussion, a mod may move this thread over there before I'm done typing this.
Anyway, in regards to your question. If you can take 8mg and barely nod off, I would start at, well, 8mg. Klonopin is a benzodiazepine and benzodiazepines are quite hard to overdose on
by themselves, but they are much easier to overdose on when combined with other CNS depressant drugs such as alcohol, barbiturates, other misc. depressants and opiates.
I recommend started at 8mg and seeing how you feel, working your way up if you need to take more, but take it in small 0.5mg steps.