BryanFTW:
My servo stops now with one LDR.
That sounds like you have made huge progress since you said
But that's the problem I'm so new in Arduino that iI don't know anything about it.
I hope you are really proud of what you have learned.
And, now that you can get one LDR working why not try duplicating the LDR code - with different variable names - to see if you can get the other one to work.