The best time to negotiate your salary for a new job is the moment AFTER they say they want you, and not before. Then it becomes a game of chicken for each side to name an amount first, but it is to your advantage to get them to give a number before you do.
The past is a resource that can be used in the present.
我不完美,但我始终做自己。
You are not the opinion of somebody who doesn't know you.