One of the hardest things to do is leave your worry behind. Through out the Bible God tells us to trust him and to not worry. Yet it is something we do on a day to day basis, our health, our family, our jobs, our money, even daily tasks. God doesn’t want you to do that, he wants you to trust in him.
I have very bad anxiety and struggle daily with this. In the past I’ve read books, online articles from doctors, had medicines suggested to me. But the best solution has always been to just take a deep breath and let the Holy Spirit flow through me. It gives me a sense of calm.
If satan tries to get into your head, quote scripture at him, just like Jesus did and then send him away. Focus on God in every moment, praise him always.
Read what God did for Israel, read about the miracles Jesus performed and hear people testify their own miracles still happening today. Your worries big or little will be handled by God.
Always remember that even if things don’t turn out exactly how you want them to, that this life time is a blink of an eye compared to eternity. Stay on the narrow path and trust in the Lord.