Psalm 73:25 “Whom have I in heaven but you? And earth has nothing I desire besides you.”
Insecurities happen when we desire something else rather than God. We desire success, position, material things, fame, love from other people, etc. But the reality is you can’t always have everything. Everything in this world will perish. They will all fail. Earthly things cannot give you the things you’re looking for like love, joy, acceptance, security, etc. I believe this is God’s word for you. To desire Him alone. If you desire Him you’ll not be disappointed. God never changes. He remains the same today and forever. For He is everything you’ll need. And He’s more than enough for us.