Recovery Week

I want to say thank you to the USMS forum for allowing me to read all of the nice information about swimming. It has taught me a great deal more swimming then I had anticipated. I have a few questions that I have read from past threads that deal with recovery after successive workouts over a extended period of time. Over the past three and half months I have accumulated many yards and only missed 6 days during that time frame. My recovery days are normally Thursday and Sunday where I do low key swimming and no hard stuff. I sprint 50's, 100's, and 200's once a week to try and improve my endurance speed level. My question is that should I take a recovery week or two to work on stroke technique and just swim easy during this time. I know that when I was younger I had about 1-2 months off from age group swimming per year normally after the Fall/Winter and Summer seasons. Should I be worried about burnout if I continue swimming 7 days a week? Or should I separate my training into periods during the year? I swim alone like some people on this forum and read about one person who had swam for almost a year 6 times a week and was almost burned out. Thank You for your time and expertise in this area.