How long does it take you to plan lessons?

Currently ECT1. Have left all of my lesson planning for next week (7 lessons) until Sunday. At the moment it takes me two hours to plan each lesson. I'm so worried that I'm not going to get it done. One of the year 6 teachers told me last term that I need to stop planning things last minute, but I can't seem to stop procrastinating. And now I'm in this position.