How to control evil thoughts

Throughout the day, our mind is always working, it never stops, and since our mind is always working, thoughts go beyond what we even think about, and if we take notice, they are often horrible thoughts. And we ask ourselves: Why did I think about this? Or think about that?
How can we keep our thoughts only on things that please God? How do we stop unpleasant thoughts? How do we stop agreeing with evil in our own minds?
The emptier our mind, the more it will become occupied, most likely by something that displeases God. Therefore, it’s important to occupy our minds with pleasant, good thoughts, with what unites us to God and not what separates us from him.
At all times, evil puts suggestions in our mind: You will not achieve this; Nobody likes you, You'd better give up, and uses insecurities and doubts all the time; they leave us sad and anxious believing in a lie, thus taking our strength and working to make us weak in relation to everyday situations.
How do we prevent this?
When we die to this world, we no longer live for it. We trust in God 100%, whom we serve and know we are under his protection all the time, we seek for a daily relationship and maintain our thoughts on his Word, which God’s power within us, our faith, and we overcome that evil thoughts that try to intimidate us every day, and actually practicing this every day, things begin to change. Everything becomes easier; we begin to see things we could not see before, as if we had been locked in a world that existed only in our minds.
Everyone goes through difficult situations in this world, problems, and challenges. It is during these moments that we must control our thoughts and not let evil come with its lies, and this is only possible when we have a relationship and total trust in the living God, whom we give our lives to; certain that he is in control of everything.
Do not be controlled by your thoughts, instead take control of them according to the word of God and everything will be easier...

"Since, then, you have been raised with Christ, set your hearts on things above, where Christ is, seated at the right hand of God. Set your minds on things above, not on earthly things. For you died, and your life is now hidden with Christ in God. When Christ, who is your life, appears, then you also will appear with him in glory.” Colossians 3:1-4

What we should to think?

With our thoughts we can travel, visit the past, project the future, remember those who left, or even stay in the frustrations of the past, we can choose what to think about, this is the most important part.
We dominate our minds when we learn to use the authority that was given to us.
We have good thoughts, bad thoughts, thoughts that scare us... so we cannot get carried away by our thoughts, instead we must carry our thoughts where we want.
The human mind is really incredible and it controls all our body. It all begins in the mind, this explains why many horrible things happen: people who attempt suicide, depressed people, people who take attitudes and then repent, and at times after the act some people wonder: "How could I do this? How could I act this way? Why let the mind dominate and cause unimaginable actions so distorted from reality.
There are some people that have everything to succeed, but because of negative thoughts, or that voice: "You're not going to get it", their life is at a stand still, tied up and ends up being a frustrated life without achievements.
When you really believe in something and change your thinking, changed your point of view, everything becomes easier, and even the universe works in your favor.
Long ago, I realized how fragile I was when it came to my mind, sometimes I would spend hours alone, but speaking in my thoughts, and sometimes remembering unpleasant things without realizing how much this affected my day to day. Until one day the light shone: I decided to think only of what I wanted ... Yes! I can control my mind, which would sometimes lead me to inconceivable things and to act without wisdom. This is not easy, we are human, susceptible to mistakes, and we live in a world that is becoming increasingly difficult, but it is possible.
It is necessary to practice. The principle is not easy, but every time an unpleasant thought comes, I start to do something different. It is like throwing it out of my mind, and soon enough it passes. In my daily practice, I see now how important it is for our lives to have a clear, pure and healthy mind because surely we will also have a clean, pure heart, which is pleasing to God, thus having a happier life.
We cannot be trapped by our thoughts, our mind is what determines what our actions will be.

"Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things" (Philippians 4:8)