Peace does not mean that there won’t be any trials or tribulations.
It means that you will have it despite the troubles.
You will keep him in perfect peace, whose mind is stayed on You, because he trusts in You.
Isaiah 26:3 NKJV
The devil’s goal is to steal your rest. This is why it is so important to keep our minds focused on the One who gives us rest.
God won’t take away the obstacles, but He will help us endure it and come out stronger at the other end.
Focus on God, choose to trust Him and to find your peace in Him.