counting kicks

When y'all are counting kicks, are the kicks even throughout the 2 hours or random? I feel like she keeps kicking a lot during the first hour and I even surpass 10, then the 2nd hour she kicks like 4 times... is this normal? Am I being too paranoid?  Plus, how many times a day do you count? Like I'm not going to count 10 every 2 hours I don't think all the time... sometimes she's very still and others she's moving everywhere.