Assalamualaikum, good day!
The problem that most of us face is what we call the, "If I only..." syndrome. We are constantly focused on the things we don't have instead of being grateful to Allah for the things we do already have.
Thankfulness frees our heart from greed, jealousy and envy. When we are thankful to Allah, we remain mindful of Him and His continuous Mercy toward us, and this in return humbles us and improves our character.
Allah also says in the Quran that only few of His servants thank Him.
Let us then strive to be among these few by keeping our tongues wet with His remembrance and our hearts soft with His praise.
Stay smiling through the day, have a great day ahead!