A great quote from Rabindranath Tagore: “I slept and dreamt that life was joy. I awoke and saw that life was service. I acted and behold, service was joy.”
If your service is not joy then chances are what you are doing is not on your basic purpose. I have written an article to help you work out your basic purpose if you don’t yet know it. Please, take advantage of it. Your future self will thank you enormously for the time you invest in finding it.