Depend on God Not on His Gifts
God often gives us gifts, like money, a good spouse, a good job, good health, ... etc., but sometimes we get distracted by forgetting Him and focusing on the gift instead.
Doing that will separate a believer from his Creator, as the heart fills with attachment to something other than God.
For example, a believer earns a large sum of money, and is happy of his bank account. Instead of thanking God for this gift, he is now attached to his bank account, and thinks this will be the source of his sustenance, while he forgets that God is The Provider, not his bank account.
The peace of mind which comes with a strong faith, now turns into worry about his balance and anxiety about the future.
Don't be that person.
When God gives you a gift, thank Him for this gift and make use of it in the right way, but don't make it take over your heart.
To maintain the heart filled with God's love, a believer does not allow the attachment to worldly matters into the heart, but instead manages these worldly matters in a wise and balanced way as he knows that worldly matters never last, as one day either they are gone, or we are gone and we leave them behind.. What really counts is God's Love.
If you are really searching for inner peace, don't be distracted by worldly matters and don't let them take over your heart.