Mom and dad are fighting and were moving in a good home its lot of mony and dad wates to quit the job what should I do

How old are you? There is probably nothing you can do, as the adults must handle their own problems.

That's totally up to your parents. I'm sure they have had their share of issues which is why they constantly fight. Just remember that none of this is your fault.

why they decided to seperate.

I don't see where the OPs parents are separating. Only that they are moving into a nice house and the Dad wants to quit his job.