Repetitions, Negative thoughts. Right.

If you have habit of reading... then I would suggest to start reading books that are positive and motivates you to look the world in a positive way. That will be easy for you as you do read. For negativity, start to ventilate it by talking to someone or writing and throwing it as much as you can. Afterwards giving positive self affirmations will help you to be more positive

Hi, Unwanted repeated thoughts can make you feel anxious or depressed. They may keep you away from enjoying your life. What you think can affect how you feel. Few techniques can helps you change how you think so that you feel better. Changing your thinking will take some time. You need to practice every day. After a while, you'll be able to stop unwanted thoughts right away. If you are not able to do it yourself, or your life is distributed, then you should consult a psychiatrist to stop thoughts that bother you

Consult a psychiatrist for evaluation and management. Symptoms above indicate OCD.

1. The first step to managing your OCD symptoms is to recognize the triggers—the thoughts or situations 2. Learn to resist OCD compulsions, repeatedly exposing yourself to your OCD triggers, you can learn to resist the urge to complete your compulsive rituals. This is known as exposure and response prevention (ERP) 3.  Building your fear ladder. Think about your end goal and then break down the steps needed to reach that goal. 4.  As you are resisting your compulsions, focus on the feelings of anxiety. 5. Practice relaxation techniques. Mindful meditation, yoga, deep breathing, and other relaxation techniques can help lower your overall stress and tension levels and help you manage your urges. For best results, try practicing a relaxation technique regularly. 6.  Make lifestyle changes to ease OCD 7.  Exercise regularly 8. Get enough sleep 9.  Avoid alcohol and cigarette smoking 10.  Don't let OCD or any other disturbances to take over your enjoyable life. Consult psychiatrist.

It could be due to obsessive compulsive disorder ( OCD) or a manifestation of an underlying mood disorder.

Consult a Psychiatrist for detailed evaluation

Do not ignore/self medicate/self treat