Swimming Advise Please!? (Needed from professional trainer/swimmer)?

There are many websites you can use that will set up workouts based on you abilities. I use swimplan.com. You enter your swimming abilities tell it which training products are available to you and it makes a program based on that information. If a workout is too hard, you can tell the program that you need an easier workout. If a workout is too easy, tell the program you need a harder workout.