A wise person once said, "Life is too short to be sad."The shaytaan as Ibn al Qayyim mentioned gloats and is very delighted at the sight of a sad believer. What do you have to be sad about O Muslimah when Allah has saved you from disbelief and bi idhnillah, His Hellfire!?
Yes we may experience moments in life that are not so pleasurable but counter these moments with patience and taqwa. Turn to Allah in moments of ease and Allah will take care of you in your moments of difficulty!