I struggled for ages with full press-ups, my upper body used to be very weak, but I kept chipping away relishing every small improvement and I found that, although it was awesome to eventually master the exercise, the biggest prizes were picked up along the way.
It’s so important to realise that it’s not about being able to do a particular exercise, that’s probably not your real goal. It’s in training to do be able to do that exercise that you gain the benefits you’re really wanting.
What you actually want is probably some combination of to get fitter, stronger, healthier, maybe shed fat, sculpt your body, gain more confidence, have more energy, be able to move better, or just generally to improve the way you feel about your body and yourself.
These things don’t suddenly fall into your lap when you cross the threshold of being able to perform a particular exercise or finish a particular workout. They happen gradually as you work towards being able to do more.
Don’t get frustrated about not being “good” at any exercise. Embrace the struggle. The struggle is the whole point!
Keep practicing and know that every time you reach that point of “failure” you’re in exactly the right place, doing what it takes to win the body you want.
Here’s some more of my advice on enjoying the ride: http://www.juliasfitnessblog.com/blog/2015/01/17/julias-fitness-tips-17-you-dont-have-to-workout-you-get-to-workout/