Just replying back to your explanations in the same order:
- Normally the last 2 years of high school are when students normally begin to understand what major they want to pursue, so your indecision is not a surprise having started early.
- Pursuing a career that will lead to both personal and monetary success to help provide for your family is a great aspiration. Pursuing a career for the sole sake of monetary success whether it be for selfish or selfless reasons is a difficult path and might be part of the problem you are facing now.
- You shouldn't be thinking about the amount of time you are going to have for your kids in the future... you are only 19!!!! Careers today are different than they were 10, 20, or 30 years ago, just as they will be in the future. Also, work life balance is something that is developed as you grow older.
I don’t work in supply chain & ops but as a management major who took a number of ops management courses, I found them to be some of my most stimulating courses. I think your current dissatisfaction might be specific to your workplace and not necessarily the field (although possible)
- The majority of internship experiences for freshmen/sophomores (who are typically your age as undergraduates) aren't that stimulating. Traditionally, junior year internships (20/21 year olds in their 3rd year of undergraduate college) provide the most intellectual stimulation and require the most hard work as it is typically the last professional indicator to full time recruiters for 1st semester seniors. As someone who has accelerated the academic timeline, it's often difficult for firms to place you relative to your peers because it's a holistic process that is also largely dependent upon your behavior/social interaction. How would you fit in amongst your peers?
- It's totally fine to want to be wealthy, who doesn't? But being wealthy doesn't mean you will be happy, nor does working less hours. Don't look for a job that will fill those check boxes, instead look for a career that will keep you interested and stimulated. If you love your job, you won't mind working long hours and you will want to push the boundaries of your everyday work life, money follows that.
The thought that were isn’t a career out there that will be able to pay well and stimulates intellectually is an inherent limitation to discovering the opportunities you are searching for. It’s what has sparked the development of entrepreneurship courses across top business schools and led to the founding of hundreds of new companies within the past decade. It’s dangerous to reduce every option you have into a binary choice because it eliminates the possibility of creating/exploring a 3rd path which is in reality what you wanted from the start.
Overall, it sounds like a lot of the issues aren’t with the supply chain ops or business, but with your specific experience. Having to work “shifts” and focusing on day to day operations doesn’t sound like a career for an mba candidate which may be why you don’t feel stimulated. Try applying to some larger companies for more traditional internship opportunities at the corporate level.