People no longer work at the same employer for their whole careers. However, unless the have evolved and changed with you, you may find yourself bored or uninspired by it. It's fine to say that, while you've enjoyed working for the company and learned a lot in your role, you believe you've learned everything there is to know.
It's difficult enough to do work you don't enjoy with passion, let alone be the greatest at it. It simply does not come easy to someone who lacks passion or drive. People in Odessa TX, are more confident in undertakings that appear to flow naturally. This applies to anything from composing emails to speaking in front of large crowds to putting together a presentation.