What do you need to calm your brain about? Any stress? Overthink ingredients? Panic? Negative thoughts Get to the root cause and eliminate it Consult with me or any psychologist for therapy and counseling All the best

Hello Friend, Good that you are seeking a help here. Overthinking or pre occupied mind are symptoms of Anxiety. Just observe and analyze what's happening around you in terms of  environment, relationships, family, lifestyle etc. Any of these could influence your mind with stress and causes such overwhelming thought. It needs professional help to first assess your current suitation and symptoms in details to recommend a suitable solution. Be positive. It's a curable problem if you are willing to cooperate and follow certain therapies and lifestyle changes.

Best remedy to avoid overthinking is to indulge your self in creative and constructive works and activities. You occupy your mind so much with positive schedules that there is no space to think about negativities. If you are finding it difficult then go for your mental health examination for assessing level of depression and anxiety which might be the cause of your problem.

may b feature of depresion plz assessment of depresion first by psychitrist online or offline