Understanding satans schemes is very important. We must learn to aware of how satan may be trying to distract us. He could be using everyday things like: worry, self-reliance, anger, bitterness, and our vulnerability. Satan can use those things to attack us a make us believe that our God doesn't have our best interest in mind. They make us question God.
I've been reading
The Invisible War by Chip Ingram and WOW! it's given me a new perspective on what the Bible says about the plans of satan and how God uses those to teach us. In the book of Job it talks about how God allowed satan to shake up things in Job's life, but it was still in God's control. He wasn't going to allow satan to destroy him completely. The Lord used all those trials to teach Job. We have to see God's perspective in the midst of our trials, we can't focus on the hurt and pain. God's perspective is for the good to come from it, He desires for us to grow closer to Him through the trials. He desires for us to rely on Him completely. If we aren't prepared for the battle then it's going to be more difficult to see that God is all over it.
How can we be prepared?
Matthew 6:33 says "Seek the Kingdom of God above all else, and live righteously, and he will give you everything you need."
Seeking the Lord wholeheartedly, completely, with all you have. Making Him your focus everyday, even if that means daily giving up things that hold you back. For me I have to surrender daily, my worries about people I care for deeply. Every morning I have to ask the Lord to take those worries, because if I don't give them up they become my focus. Also being prepared can be as simple as asking our Heavenly Father for the armor to fight this battle. Paul tells us about the armor of God in Ephesians. The Lord is on our side and He freely gives us the tools to fight the battle. Are we going to ask for them and put them to use? With this we can win, we can and will defeat the enemy. Yes Satans power is scary, but God is so much bigger and more capable than the enemy.
So I encourage you to dig deep into God's Word, discover all the He has to offer you. He desires to know you personally and fight this battle with you. No one said it would be easy, but the end reward is so much greater, surrender to letting the Lord be your leader, He knows exactly how to defeat the enemy.