Should I switch my major from engineering to finance

Hello, I am an incoming engineering student at purdue university(which is a top engineering school but a bad business school), planning to study industrial engineering. However, through my entire high school career, I was interested in finance but sort of got forced to study engineering and to be honest, I thought that if I don't get into a target school for finance, I thought that I wouldn't be able to get a good job. I was really stupid at the time of applying and regret deeply applying all engineering schools.  The problem that I am in is that purdue is a target school for top engineering/defense companies and it's even a semi target for tech. Its business school however is terrible, should I just stick to engineering and recruit for finance(or even try going into banking even though it's super difficult from a school like purdue) or should I be trying to switch my major to finance even though purdue business is terrible compared to its engineering program. I was at a super competitive high school and did well academically (4.4 weighted gpa, 1520 SAT) and I'm a little bit of a prestige whore and purdue engineering is sort of prestigious but purdue business isnt prestigious. I don't exactly know what to do, I was thinking to transfer to a top business school from purdue engineering after my first year as well. I am super nervous and I feel as though I ruined my life because I was an idiot whilst applying to college. What should I do? I would love your feedback as you guys are professionals and have great  experiences to draw from :) 

Thank you for your feedback!