What you are feeling is perfectly normal. When you decide to allow God to lead you in all areas of your life, those that you once were connected to who aren't doing the same must fall off in order to make room for God and the people that he will send that are like-minded. Jesus told his disciples they would have to leave mother, father, children etc in order to follow Him.
I would encourage you not to become discouraged. In order for Jesus to lead you, you are going to have to be intentional with your relationship with Him. Dont think of it so much as a loss, but a gain. You are gaining your identity and God will reward you for your sacrifice, believe me. I have been there before. I had to remember my 'why' and press forward. It will be difficult and lonely, but God's promise for your life is bigger, better, and greater than the temporary situation you're facing now. Stay in his word, surround yourself with worship, get plugged into a Christian women's group at your church(if they have one). It won't be in vain!
Much love sis! I'll be praying for you ❤