Scarifying

Hello,

I put weed and moss killer down and waited until the thatch/ moss went brown and then scarified my lawn. The same day I put grass seed down- this was 2 weeks ago. The grass is growing nicely but it looks like it could do with scarifying again. Today I cut the lawn on a very high setting and put some lawn food down.

1. Am I killing it with love?

2. Is it too soon to scarify again?

Thanks in advance,

John.