Here's a dose of tough love: instructors know how hard you are working, and that you aren't always tapping your potential.
Example: you are in an indoor cycling class and your instructor asks you to add resistance. Everyone adds gear, except for you because you don't want it to be "too hard." When the music picks up and the entire class is straining to get up that hill, there you are, pedaling like a demon, barely breaking a sweat.
Another example: you are in a weight-training situation and even though you've been doing the same moves for months, you're still using the same weights. You wonder why you aren't getting stronger. Guess what? You aren't challenging your muscles when you always choose the same weights. Pick up something heavier. What's the worst thing that can happen? It's too heavy and you have to switch to lighter weights to finish? Do that every time if you want to see results.
Final example: you are in a HIIT class. There are people that are going to go half-speed the entire time. And there are people that are going to stop working halfway through the interval. You know how I know? Because I CAN SEE THEM! Don't be self-conscious; no one is staring at you while you work out. But the instructor is scanning the room for safety reasons and can see how hard you're working. I promise that you'll see better results when you put in the effort.
