Knowing I have this

I came to know about ocd on quora.The information was very short.So i started looking onthe internet .To my surprise,what i find was i am a long time victim of ocd and its only growing.Its also because i live alonejust because of my obsessiveness as i want to perform better in competitive exam.When i read more onto it,I felt relaxed and terrible at the same time.The feeling that i got so often that i am bit different from others was not wrong.I think my father too have it along with two out of my four sisters.So its hereditary too.I think i am in below extreme case since i am always able to find some answer too my obsessiveness but its very disturbing to others around me .I think the best way to tackle OCD is to avoid these thoughts completely.Doesn't matter if i will not live the life of my dreams butatleast i will be happy.Life is too long to be unhappyall the time and suffer the pain.The few past years i cannot tell how it has affected my inner peace.Sometime i had to deal with sleepless night finding answers to silliest doubts which i knew i shouldn't be doing.I knew how i think is not common but never thought its a mental issue although i doubted all the time.these are some of my experience with OCD:

1)checking the lock again and again even i know its locked and i checked it the last time.sometimesuccessive checking has a time interval of less than 30 seconds which is insane but i cannot help myself stop doing it.sometime i feel crazy.

2)washing my hands and utensils again and again thinking of contamination.

3)too much regret feeling.

4)Urge to change the past.

5)avoiding people and places related to bad experience and thinking too much of it.

6)Doing something out of compulsive thought which i know is incorrect and futile.

7)Blaming others for my failure and devlop strong hatred for them.