I will probably go to work tomorrow. While I may say that I don't want to be at work, or "if I had the choice, I'd be doing something else," it's not true. It will be something I have chosen to do in favor of innumerable other choices available to me. There is no justification for saying "I have no choice, I have to do this." Of course I have a choice, and this is the choice I've made. I've made this choice based on many factors, some of which are under my control (e.g., how much money I want to spend) and some of which aren't (e.g., I haven't inherited millions of dollars). I want to have money available to me in the future, in order to continue with and improve my lifestyle. There are lifestyles that I could choose that would require less money to support, which might result in me choosing to work less. On the other hand, if I choose to stop working tomorrow, I might find that the number of lifestyle choices available to me will reduced dramatically in short order.
I want to go to work tomorrow, whether I enjoy it or not. I'm glad this is a choice that is currently available to me. This mindset is not always foremost in my thoughts, but it becomes more established the more frequently I think about it. This mindset reestablishes a sense of control over my life that may sometimes slip from my consciousness, and it reveals the abundant potential directions in which I can point my life.
What will you choose to do tomorrow, and will you embrace the fact that it is precisely what you want to do? If it's not what you wanted to do, you'd be doing something else.
(Ok, maybe "precisely what you want," if taken literally, isn't entirely true. You may really want to run a 3 minute mile, but you're not going to whether you choose to or not.)