I was moved by a video on Instagram by Deepak Chopra recently.
The key to your peace is to really understand that you do not LACK anything in your life.
We often think that once we have something specific in our life we will finally be happy. For instance, once I get a promotion I will finally be happy with my job. If I can find a spouse/partner then my life will finally feel complete.
You must understand that you are infinite, whole and complete right now. You are not lacking something. Gaining something in the future will not provide you with peace, that is something you must find in the present moment.