I fully believe most of the things that matter most in life require effort, work, and dedication to earn the rewards they offer, and pursuit of true principles often requires the loneliness of stepping into uncharted territory or paths most people dare not follow. I believe the best relationships weather discomfort, hurt, and disinterest and require sometimes herculean effort to say, do, or trust what you really don't want to in the moment but which is best for the relationship, or for the other person. But I don't believe the "hardness" of a task or a path determines how "right" it is, and I don't think the "rightest" things are always hard.
On top of or related to that, I think some of LDS traditional culture carries the idea that eternal joy, consecration, or dedication to righteousness amounts to giving up everything that brings your soul alive--all temporal joys, passions, or even pleasures--in ways not specifically promoted in church manuals. It's self-denial carried to...well, if not extremes, then excesses, at the very least in certain hobby areas. OK, so at the very least, I've done it. I'll speak for myself. I'm trying to do that more.
I just know I've gotten a bit caught up in that kind of thinking in ways that end up not holding a lot of water. I still believe there is satisfaction in knowing you've worked hard for something and thereby valuing it more rather than having it handed to you without any effort on your part, though I'm still learning to live this. I believe truth doesn't come easily, and understanding is worth the effort, discomfort, and humility. I believe working through hellish experiences can lead you to deal with similar future challenges better in ways you'd never learn if you had run from them. I believe sometimes you have to just put your nose to the grindstone or bite the bullet (yay for random cliche phrases) and do the things nobody really wants to do but which are no less essential. I believe seeking pleasures in and of itself brings little, if any, happiness and security to my life.
Often, staying in a job under a difficult supervisor until you make the right connection with the right higher-up leads you to better than you imagined. Often, sticking out the rough times of a job leads you to being better capable of handling the stresses and happier in fulfilling your duties until a much better opportunity in the company opens up, and you are glad you stayed long enough to grab it.
But sometimes, a job really is just not the right fit for you, or you really are undervalued and that's never going to change unless the decision-makers change, which they won't in your productive lifetime, or a manager really is a tyrant. It would be very, very hard to stay in that job. It might push you to the brink of insanity, test the farthest reaches of your patience, and stretch your perseverance. Heck, you might learn something profound from that. You might discover more patience than you ever thought you could have. You might realize you can maintain a positive attitude even in the face of the most difficult manager in the world.
Does that make it inherently right for you to stay and keep doing what you signed up to do? Or does your response just make it more productive than it would otherwise be? Maybe you needed to learn those things about yourself, which makes the trial meaningful. But what if another job opportunity came along which paid better, utilized your strengths more efficiently, challenged you constructively, and put you in a much more positive, uplifting work environment? Would you reject it because it seems "easier"? Would you set it aside as less rewarding because you wouldn't have as much "struggle" in it? Would the possibility of entering into a career in which you soar and more naturally and fully tap into your potential as a vibrant, productive worker be a mere temptation away from your learning experience?
I'm not going to equate this with anyone's specific situation or direction, including my own. I'm just saying to have a little caution about this notion that "harder is better" in matters temporal or spiritual, or that something being hard proves that it's right, or that something is only right if it immediately tests your limits.
"I never said it would be easy; I only said it would be worth it" is a phrase I've always loved, and I think it's a valuable reminder. I believe that as we learn and grow, we become ready to face tougher, more complex challenges, and if the rest of my life is simple and easy, I figure I'll have been doing something wrong and not growing and loving enough in meaningful ways. I just try to balance that with...I don't know...something like, "I never said it would be pleasureless or white-knuckled; I only said it would challenge and ennoble you."