Have you recently started a workout program, but you’re not seeing the results you hoped for? Maybe you still have too much flab on your abs or no bulk on your biceps. If so, you might be a victim of one of these common fitness mistakes:

1. Exercising more, but eating more.
Country singer (and former personal trainer) Keith Anderson says there’s usually a simple reason why exercisers aren’t reaching their fitness goals. “[As a trainer] the most common mistake I saw with people was diet,” he says. “When you see people working out every day at the gym and they’re still a lot heavier than they want to be, nine times out of ten it comes down to diet.”

2. Inconsistency and impatience.
You can’t work out just once a week, or every now and then, and expect to see sleek thighs in three weeks. “People get in there and want their whole body to change completely in one month,” says Anderson. “It’s just one of those things where it has to become a lifestyle. You just have to go and get whatever kind of workout you can get every day, and work on your diet, cardio and strength workout.”

3. Playing favorites with body parts.
Most people go into a fitness program with one goal in mind — a flatter tummy or thinner thighs or a perkier backside — and that becomes the focus of all their exercise. For example, “Most people do not want to work on their legs,” says Anderson. “All they want to do is work on their upper body, so they can see some biceps. But you want to work on every body part.” Becoming healthier should be a whole-body experience, with sculpted shoulders or a smaller dress size as a welcome side effect.