Need some general advice - first season and kinda struggling - how to chase points from here out?

I’ve been getting super into FPL but it’s doing my head in. I feel like every move is a week early or late. Most recently taking a -4 for Hall who got 2 points instead of just playing Amad.

I see people talk about making sideways moves - what are they and how do I avoid?

I also feel like my punts have not paid off. For example, Foden at about GW6 for 4 weeks which killed me.