Scientists generally undertake scientific research projects, which are funded by the state or paid by enterprises, universities and consortia according to the project makers. After success, scientists will be rewarded and divided. Usually, the articles published by scientists have royalties and inventions have copyrights, and the units that employ scientists have to pay their wages or bonuses. (Some are called annual salary) There are lecture fees and tuition fees for going out to give lectures at ordinary times. In short, after becoming a scientist, there will be many sources of income, not just wages. I wish you an early physicist!