As an active Mormon, you are typically expected to:

• Have a "good, better, best" mindset. Sure, what you're doing could be good, but is it the best thing to spend time on? Only things that involve the church are the best use of your time.
• Read scriptures every day.
• Attend several hours of mind-numbing meetings every Sunday. In the case of bishops, this is almost the entire day.
• Attend weekly activities with other people in the church.
• Avoid doing most "worldly" things on Sunday, effectively reducing the weekend to one day.
• Go to the temple as often as you can, where you sit through boring ceremonies that take a minimum of a couple hours out of your day.
• Research family history so you can do more boring temple ceremonies.
• "Hold a calling," which is volunteer work for the church that can range from a few hours a month to a part-time (unpaid) job.
• "Minister" to someone, which means you're an assigned friend that tries to keep the other person spiritually healthy.
• Clean the church building on random Saturdays.
• Watch 10 hours of General Conference every 6 months.
• Spend 18-24 consecutive months as a full-time missionary. No, I don't mean 40 hours per week. I mean all day every day. It completely consumes your life during that time.
• Even when that's over, you're still expected to seek out opportunities to bring people into the church. This makes interactions with non-members a lot more exhausting and inauthentic than they should be.
• Get married ASAP and have lots of kids.

I'm sure there's more I forgot to include, but I think these posters get the vibe across:

Oh yeah, and there's stuff like this: https://www.reddit.com/r/exmormon/comments/1jt35bx/perhaps_the_worst_story_ive_ever_heard_at_a/