First of all, you should indicate your personal advantages, such as work experience in this field. You can't say that you will study hard. The company invited you to work, not to study.

Secondly, you should know about the general salary in the industry, and then talk to your boss.

Of course, the most important thing is your ability to work. It is very important to say that you can bear hardships and your own specialty. The important thing is to behave appropriately, not be anxious, and be generous and confident.

Hehe, these are all my experiences ~ I hope I can give you some help.