My friend, God cares so that you don’t have to, so cast all your care upon him for He cares for you (1st Peter 5:7). Having done all, just stand ( Ephesians 6:13). Rest in his presence knowing that He is perfecting everything that concerns you (Psalm 138:8).
Remember, God will not let you stumble; the one who watches over you will not slumber. Indeed, he who watches over Israel never slumbers or sleeps. The Lord himself watches over you! He stands beside you as your protective shade. The sun will not harm you by day, nor the moon at night. The Lord keeps you from all harm and watches over your life. The Lord keeps watch over you as you come and go, both now and forever. (Psalms 121:3-8 NLT)
So yes, it’s OK to let go, God’s got it!