Hello, good sir!
First of all - keep in mind that dislikes won't really affect your channel or it's content! All dislikes do is show an opinion. Try to look at your content and see what people might of disliked or became bored of. Try to look at your more successful content, look at what you did right, and try to replicate that in future videos!
Secondly, hate is a fantastic thing - if you can deal with it correctly. Hate is just more publicity for you and it is a good sign, in my opinion, anyway. If it is affecting you personally, I would suggest disabling likes and dislikes and also disabling comments if you have to.
First of all - keep in mind that dislikes won't really affect your channel or it's content! All dislikes do is show an opinion. Try to look at your content and see what people might of disliked or became bored of. Try to look at your more successful content, look at what you did right, and try to replicate that in future videos!
Secondly, hate is a fantastic thing - if you can deal with it correctly. Hate is just more publicity for you and it is a good sign, in my opinion, anyway. If it is affecting you personally, I would suggest disabling likes and dislikes and also disabling comments if you have to.