It's not a surprise that your income will increase or getting low sometimes, never assume that being employe in good company means having stable income. The good news: Allah is super wise, very fair. Our salary might be different, but the rules still same. I will tell you real story, there was a day when i just have twenty thousand in my wallet, which mean i could buy my breakfast, then finish, the money will gone. But what i actually do at that time? I skip my breakfast, i give that money to my aunt and she look so happy. My aunt doesn't have a stable job, she make cake by order, she is so old. Having that money for that time make her don't need make cake for one day, she feel happy, and i'm happy for her. Look how easily the value of money changed if you understand what i mean.