Want to know if (male)Rooster and (fem)Horse can last in a relationship long after 8 yrs.

It's been 8 years. I think you both should know clearly each other's advantages and disadvanges. You both stick to your own opinions. And you have sharp personalities. When you have any dispute/conflict, you never compromise. If you both hope your relationship can last, then you both should try to compromise. If you can do this, there is still a future for you both.