Stop losing your peace because of things that don’t matter in the first place. Your mind is always so occupied by unfruitful concerns about who is saying what about you, what negative things the future holds, what happened back then, and the mess you’re dealing with right now.
When you are consumed in your mind, so shall your reality be also. Your mind must be freed in order to be free indeed in life. Change your mind, and you change your reality.
And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God
Learn to ignore what doesn’t matter. This is a basic principle of meditation. Keep your mind focused on that which is worthwhile, without reaction but just observation, and gain control over the ideas and thoughts you accept and reject.
Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things.
2 Corinthians 10:5
Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;
Stop being controlled by your thoughts, but learn to master them, and as you master your thoughts from within, you master your life externally.