Do you think negative self-talk and self-doubt is a gym-only problem? Right. It's not. If you do it in the gym, on a run, or on the Precor, you're probably doing it at other places. I started noticing other areas of my life that sneaky little voice invades and I've decided to do something about it.
Have you ever started a sentence at work with "this may be a dumb idea but...". How about "this may sound crazy but...". I noticed men and women do it. So, it's not a woman only thing. But I've observed that women do it more. And it unintentionally conveys a lack of confidence. And if you don't believe what your saying, why would or should anyone else? Which makes a person sound more confident: "this may sound crazy but why don't we let our customers know about our new strategy?" or "Letting our customers know about our new strategy will have a direct effect on our business."? Of course it's the second one (see how confident that sounded?).
In the gym or working out, the voice will sound differently, but have the same effect. If your legs hear (yes, they can hear) " I really hate squats. They make my legs hurt. I can't walk the next day. I really don't want to do them" then how good will the squats be? Exactly. Not great. But if your inner voice is cheering them on "Ok legs. It's leg day. Let's go kick some butt. My legs are going to feel awesome after this workout. Ok, tired, but awesome!" Your leg day will go and feel much better. Try it. It works. But not on burpees. Nothing works on burpees!
Awareness is the key. Start listening to your inner voice. What kinds of messages are you getting from it? Supportive? Encouraging? Is it your cheerleader? If not, get to work on it like you would a muscle. The more you work it out in a positive, self-supporting way, the more natural it will become. In all areas of your life.