Suffering really hurts. To deny that we experience painis to make them even worse. Don't put on a brave front to appear even more spiritual. Rejoicing while suffering is not mere stoicism. But our joy comes from knowing that God is using them for a purpose in our lives and will give me no more than I need.
Trials are personally fit various trials manifold, different kinds.
But no matter how gray or blue the day may seem, God gives us the grace to go thru any trial. Victory in one doesn't guarantee you'll have an easy time in the next trial. Peter illusts this truth by pointing to the goldsmith, No goldsmith would ever waste any of the precious gold ore. He would put it into the smelter for just the right amount of time to remove the cheap impurities. It is said that the eastern goldsmith would keep his gold in the furnace until he could see his face reflected in the gold.