When it comes to resting or not resting, I'm either in the tide pool or I'm in the ocean. If I'm in the tide pool, I live my life in safety, rarely interacting with other people and spending a lot of time watching TV shows/movies or reading, generally at the cost of my work. Life in the tide pool is nice, but I can hear the ocean of responsibilities and the water keeps moving around. It's calm, but it's not peaceful. If I'm in the ocean, I try to make sure that everything I might be asked to do is done to perfection, at the cost of taking breaks, relaxing, and recharging. And then I hit the rocks and fall apart. Life in the ocean is chaotic and exhausting, but full of people and accomplishments.
Finding the balance between work and rest will be a life-long process. I am a recovering approval seeker. For me, work is a way to prove myself--that I'm reliable. That I'm responsible. That I'm self-sufficient. That I am independent. Rest is something that weak people do. Of course these things are not true. Worshiping rest is just as wrong as worshiping work. In fact, if I devote all of my time to either pursuit, I will burn out. There is only one source of rest.
When your job is to love other people, you end up with at 24 hour 7 days a week schedule. In the midst of that schedule, there will be no rest if you do not seek the source of rest. Even vacations will be plagued with worries or guilt for things left undone or things that need to be done. Living by faith means that you can rest by giving your worries and feelings of guilt (either legitimate or misplaced) to God. Living by faith means that you can work by giving your best (not perfection) and your accomplishments to God. We live for His pleasure and approval. We rest by seeking His pleasure and approval. So Paul can say that he is being poured out as a drink offering and can continue to be faithful to the Word in the midst of his demanding work because he's connected to the source of rest.
I don't know about you, but I want that kind of rest. The kind that energizes us to continue to do good work. It won't happen unless we go to Jesus, especially in our busiest times and in our times of leisure.