Everyone is built differently and there are things about our body that we can't change through hard work, such as our bone structure.
Occasionally you’re going to find that a specific pose doesn't really work for you. Let your teacher know and they will be able to help you find an alternative pose, give you some props to help you, or make some suggestions on how to situate yourself to make you more comfortable. Let them help you “make it yours”. Your practice is about you, about being present in the moment, being at peace with where you are during your practice, and about doing something wonderful for yourself.
If you feel discouraged during your practice, remember that everyone’s bones, proportions, and flexibility levels are different. Let it go, honor your edge, and be kind to yourself. But keep practicing! Yoga is beneficial for everyone, no matter what your fitness level, experience level, or body type.
Always take the time to thank yourself for coming to class and for taking time out of your day to practice. You are doing something good for your emotional and physical health. Acknowledge that and be gracious to yourself.