>>13775039>ceteris paribusIt's easier to see the effect of one variable if you hold every other variable constant. This isn't specific to economics. You might not hear the term again after the first or second year but you'll always have to keep it in the back of your head.
>Realistically what kind of job prospects do I have?That depends on how far you go and how good you are. People usually do undergrad with the goal of going to grad school. If you stop at undergrad, it's pretty much guaranteed to be a boring job. There are jobs for economists in research, consulting, etc. in the public and private sector. That means financial institutions, consulting firms, government agencies, etc.
>Also i don’t know any calculus, how much calculus should i knowYou should know as much math as possible. Choose math/stats courses as your electives. If you can't pick math/stats courses for whatever reason, programming courses are a decent choice too.