Do you want to be a traditional industry or sales?

If you are confident to do sales, you will definitely make money if you do well, but if you are not confident, you might as well do technology steadily, because there is no risk in technology, so you can keep it in the future, and you can always eat it as a meal and eat it everywhere, but it is not very profitable, or your salary will increase according to the length of time you do it! So sales are profitable, but after a few years, you will suddenly find yourself doing nothing but selling!