Am I wasting my money?

I’m an intermediate player, I’ve been playing for about 10 / 12 years now and I’m wanting to learn how to improvise (I’ve joined a community band). I found a teacher (who’s not too cheap) I’ve been going for about 3 months now and so far we’re just running up and down scales and modes to backing tracks. I don’t feel I’m learning anything that I don’t know, I’m just refreshing my previous lessons, relearning modes that I’d forgotten or hadn’t had a use for. is this normal?