Hi Wayliin, as you said, 10months do sound like a long time to keep searching for a job. While I don’t know what place you are in or what kind of job you are searching for, I would like to present some things you can use.
Have you tried searching in different kinds of places, among different kinds of organizations? May be where you are searching for, the places are full of people but there may be a vacancy in a different place.
You also can try to review and brush up your resume in a different way ( may be more creative or formal way which might change the way people look at you), you can take help from someone for this.
I read somewhere that while it is true that things happen if they are meant to be, it is also true that right things happen when we do right things at the right time.
Contact someone you know who already has a job in a place where you want to apply, gather information about what is expected from your skills in that place, then decide. Do this well before you appear for interview, not on the day before.
Consider talking to someone else who is now in or who has been in similar situation, you may find some info on where you can still improve.
And lastly, if it is ok with you, write on a paper about all the mistakes that you think you have committed in the previous interviews or are guilty about, and what would have been the correct way.
These are few things that helped me when I screwed some interviews in past.
Good luck.