Hello Samrat mandal
I can feel ur pain frnd,as my best friend too has OCD.
You knw everyone will tel u its uncurable
,many will tel you something which will make u question on ur own existence , but let me tell u that we are all humans and we all suffer ! Yeah, we all suffer either physical or mental or emotional pain in our lives,only those who live with the positivity in them lives well.
Dear friend when my best friend is wondering why he is thinkng soo much on a trivial thing which any normal person wil not even pay attention to,or how can he think such a horrible situation /consequences/result of any situation ,he really starts feeling pitty for himself, but he truly feels better n tries to move on from such thoughts when he shares.
He has a gud support of friends who accept him.,listen to him even when he is repeating himself,
I personaly keep asking him what he is thinkng ,whats bothering him..and when he shares it helps him to feel better n stronger !

I wud suggest you to have people around u who understand to, listen to u and assure you that these are just thoughts!
I knw always havng such people arnd u isnt possible, thats y i accompanied my best friend to Pychiatrist who askd him to do ERP(exposure n response prevention)which really helps and medication.
Though these treatment procedures takes time,but he is better. So i wud suggest u to consult one too.

My friend i wud ask u to involve in ur day today life with minimal stress,as stress increases these racing thoughts n then the cycle.
My friend these are thoughts which ur mind is compelling u to think,these thoughts are not yours, never think negative..a lot of people has it !
You can see videos on net,how people cope with them
I would request you to start keeping a journal this will help u be happy n fight racing negative thoughts
Have faith in god n learn meditation and do it daily,your kind needs to relax, eat less fat,more vitamins minerals n roughage containing food.
Regular exercise will keep u healthier n positive.
Dont feel low my friend.. You will be fine. Just few changes in your life style n u wug be better 🙂
All the best
Do post after a month or so. Wud love to knw ur progress
God bless you
Happy life😊