Seek professional help like goingfor some therapy by physiatrists ,therapist or counsellor if you think you are trapped in your mental state.
Meditation and yoga are very important things to clear your mind clutter and increase your concentration power. Daily routine of at least 30 minutes can significantly improve your mental health state.
vMindfulness is one of the most important techniques to tackle chronic stress. It is a practice which involves focus on present moment and hearing the sounds near you, observing the calmness
Deep Breathing is very impactful method to tackle mental illness ,in this method include some breathing exercises like box breathing, diaphragmatic breathing, focus slow breathing