I once confused “things will get easier” with “things will eventually change to your liking”.
Now I understand that as we go through the inevitable disappointments in life, as long as you are growing through it, your ability to overcome them gets stronger. That’s why things get easier. If your heart was a muscle, it could only be strengthened by working it out. Trying to find compassion or a loving response to something we want to violently strike down takes some serious heart strength!
When we run from, deny, avoid the inevitable disappointments (or stay resentful) we don’t learn anything. I.e., the heart never gets a work out. It’s equivalent to sitting on the couch eating junk wishing you were fit.
Things get easier, for sure, if you are learning and growing from your experiences. Problems don’t disappear (and unfortunately they never will- that’s life) but their affect on you might!