Is it because the Lord is allowing it to accomplish some purpose in our live or have we done something which has brought it about and we are reaping something that we have sowed. Could be the evil one is causing it and we need the Lord wisdom and strength to overcome what Satan has intended for us.
If it is something the Lord is allowing it like the situation with Job in the (OT) where God was allowing Satan to do things that He could have never known at the time and it had nothing to do with anything Job had done wrong.We need to trust Him and not lean to our own understanding (Pro.3:5-6) in the trial and ask God for strength and comfort because God is faithful and will not allow us to be in a situation that is more than we are able to handle (1Cor.10;13) and as impossible as it sounds He will find a way to work it for our good. (Rom. 8:28)
If it because of something wrong we have done and we have brought it about as the result of our own actions then we need to ask God for forgiveness and if there is any action He wants us to take to make the wrong right then you do it and now you have done what God requires and you have made it right before God and it’s time to move on and put it behind you.. 1John1:9
If the evil one is one is trying to harm you then you need to hold your ground and do what Ephesians 6 says by using our Spiritual weapons that God has given us and realize that greater is He that is in you (Holy Spirit) than Satan who is trying to wreck your faith. (1John4:4) Remember Jesus said; “In the world you will have trials and tribulation but be of good cheer I have overcome the world”.