Firstly, don't be afraid. God does not remove his grace from you just because you feel as if you've fallen away from God.
God is always there inside you. Waiting for you to turn inward and come home. God knows everywhere you have been and all the glorious places you shall travel. And you are not forsaken of God.
Sometimes we think of God in human terms and relationship. We left God so God said, fine, you don't want me, I'm out!
That's not a higher power. That's our lower state of being, as humans.
God loves you for all eternity.
Pray, meditate, even Jesus meditated as in the garden of Gethsemane. Prayer is when we speak to God and meditation, it is said, is when God answers.
I have friends who felt as you do. All of you taking different paths so as to feel you've abandoned God.
What they did was pray, one even fasted from sundown Friday until sundown Saturday, the traditional sabbath time, and then because they were not near a living body of water for immediate travel, re-baptized themselves in their bathtub. No lights, just them, God, and a candle. (God is the light in the darkness).
It was their rite of reunion with their faith.
When the left the water all their panic and upset was gone. Washed away. Because God is all and in all.
That's my suggestion for you. You are lovable. Because God knew you before anything was created at all. God is with you and waiting for you to let go of your fear something is blocking your reunion. No thing can do that save for you believing it is possible. Believe instead God is there with open arms as always waiting for you to see God has been there all along.
May peace fill you and the light of our creator guide your stndseps. Amen.