What would you do even if you'd fail?
This is another way of asking what is important to you, what is non-negotiable for you, and what is it that you can't leave alone. Which process are we willing to commit to irrespective of whether we get the outcome or not?
A sales professional who loves to talk to potential clients and solve their problems does not worry about whether they would buy or not. An active person enjoys working out and running so much that she doesn't much care about how it's affecting her weight. A student who loves to learn history doesn't really worry much about how much he'll score in the history exam.
When we embrace the joy in the process, we repeat it enough times for it to work and the outcomes become the side-effect that might or might not happen. When we focus on the outcomes instead, our process gets side-railed, and we are not able to stick to it consistently enough to produce an outcome.