if you know what might be happening to my channel, please comment (desc) 

so i had 300 subscribers on morning of 30th of november and i lost 150 subscribers when i came back from school. i don't know why that happened. today when i went on my channel, i saw 129 subscribers... i don't know what to do, i want to quit youtube because of this.. just please comment in the comment section what do you think is the reason of all this