I agree with George Carlin. Life really isn't that difficult. It's the unecessary situations, poor choices, and toxic company people surround themselves with that are often the issue. Once you surround yourself with quality friends that don't use you and appreciate you for how you are, work relentlessly to actualize your wildest dreams, and always approach every failure as a learning experience not a sign to quit, you're on the road to success. Friendships shouldn't require constant effort, they should feel effortless. They should be mutual and you shouldn't have to question honesty or loyalty even once with the right person. Your goals and dreams are important as they're your mind showing you what you're naturally good at (work to further those!). Never surround yourself with people who discourage you from working to bring those dreams to fruition because you'll look back in hindsight at 70 and really regret it.
I've always been a big believer that most of the hardships I've endured in life I've had some hand in. I've either tolerated not changing situations that weren't working out, or not learning from my mistakes, and that by far has been the largest source of stagnating in my past. Think about it. If you're feeling like you could use a pick me up, here's a good one. Look at failure in your life like a tiny speed bump on your way to greatness. Look at the company you keep as a representation of how much you care about your mental health and wellbeing. Look at how you let things affect you that are largely inconsequential to the grander scheme of things. Then you can have room to invest your emotions into things that actually deserve it like your significant other, or a death in the family that might demand those intense emotions rightfully. Be careful what you allow to have power over your life.