Novice Workout needed (1hr or around 1500 yards)

Hello, I just joined and had my third swim in over 25 years today (1500 yards). I'm not familiar with the terminology I'm seeing in a lot of the workouts but I have some basic skills I can build on. Is there a place I can look for workouts that are simple and around 1500 yards? I have fins and paddles and swim in a 25yd lap pool. Thanks and I apologize if the answer is staring me right in the face but I can't seem to find anything. Wendy's workouts seem just a tad too ambitious but I'm sure I'll be doing them in no time. I just need a place to start that is simple. Thank you! Shelley