Presumably you want to spend your time here on Earth doing something that matters to you. If you fall into that likely category, there are two questions you ought to be asking yourself to ensure you're making good choices.
Dr David D. Nowell suggests that even if we're generally healthy and happy in our lives, we can often waste a lot of time being unproductive and wasting time on things we'd rather not be doing. This probably doesn't come as a surprise, but he has a pretty good suggestion for identifying these moments so you can weed them out:
Effective time- and self-managers are asking themselves two questions, moment by moment. Those Two Questions are "Am I having fun right now?" and "Is this what I've set out to do"? If I'm doing what I'm here to do, experiencing what is mine to experience, I'll be motivated and focused and engaged. And everybody around me will benefit from that, too. Just like I benefit from being around the people I've known who are truly living On Purpose.
If you can answer yes to both of those questions, chances are you're in pretty good shape. If not, it's worth assessing what you're doing and if it's worthwhile. If it isn't, it's time to get off your butt and move on to something more relevant in your life.
Ask Two Questions [Psychology Today]