Quit 10 thousand of the monthly salary?

Before the monthly salary of 10 thousand, is a small company, a person to do a lot of work, on call. In addition to doing my job well, printing, copying, changing pictures, sending information by drivers, etc., call me.
Because there are few people in the company, and I am the most honest. Everyone else can’t call it. Hey, it’s all tears.
The boss often told me a sentence, give you so much money, you have to be able to afford that salary.
Colleagues also feel that my salary is the highest, and I have to do the most.
After 2 years, I can’t help but quit. After looking for a long time, I always wanted to find a salary higher than before, but I found it very difficult.
I thought that although I did a lot of work before, it was all very low-level things, such as printing, copying, changing pictures and sending information by drivers.
Then we found the present job 7000.
It is a relatively regular company. The division of labor is clear, and the things in it are done well, and I will not be asked to do anything else.
It’s a little bit easier, but the salary is 3000 less. Well, there is a loss.