SOS! ALL BUSINESS PROS!! NEED ADVICE ASAP

So, I’ve finally settled on majoring in Business. However I’ve received mixed feedback from people saying it is very tough to get even a decent paying job in such a crowded field. Is this true???
Also, I need help on understanding the difference between majors- Business Administration, Financing. Accounting, Marketing etc. etc. In your opinion which is the most valuable major???
A friend of mine has a Bachelor of Arts, and a degree in in economics and is making 110k at Goldman Sachs. That is the kind of level I want to be at in this career (high salary, good job availability), with the potential to work my way up
I don’t know too many people successful in business, but please give ANY advice as I’m a clueless person in this field (as of now at least) and what skills should I be working on to pursue a career like this?
Thank you!!!

@Nitare6679 I got this from Google. Finance is about managing/manipulating money, and accounting is about tracking those kinds of manipulations. Marketing is the more creative outlet of business in charge of advertisements and outreach. Business admin is the broadest one of them all, in which you learn about managing people and not money.

Everyone wants to do business if not something STEM so it is a saturated field and it is difficult to “make it.” Goldman Sachs is very difficult to be employed by. There are many other large companies like Berkshire Hathway or smaller local firms that will give you many outlets into business so you probably won’t be unemployed.

As for what you should.major in, you should evaluate what you’re good at. They can be very different things once you delve into each field.

My advice is to get into a business program at college, start taking courses, and see where your interests and aptitudes lie before choosing a major. At any business school there is a business core curriculum and you will take intro classes in subjects such as accounting, finance, IT, marketing etc. so you will get a sense of the choices out there. You will also be able to seek out advice from professors and your school’s career placement office. For now it is enough to know that you want to apply to business schools.