This has been an interesting thread and I like reading other people's journeys. I will retire next year so it gives me an opportunity to think back on the good and bad.
Graduated high school in 1974 - during high school had your typical minimum wage jobs at places like Baskin Robbins.
Went to a small liberal arts college and majored in math and chem. Worked summers as busboy, waiter, data entry.
Got a research assistantship in a graduate program in statistics and went straight from undergraduate to grad school. Finished a doctoral degree in 1984.
Worked for a large pharma company in their research and development for 28 years. Most of this was in clinical research involving clinical trials for new compounds. In 2012, company started downsizing so I took early retirement and moved to a university position as a non-tenure faculty supporting large observational studies and non-drug clinical trials. Will retire in 2024.
In regards to the specific questions:
Did you start your career for the money/lifestyle? A little of both. The money was pretty good after grad school and I got some good bonuses working on successful drugs. All office work with little travel required.
Do you have a job you love? My current university position is great. The money is less than in pharma but the stress is much lower and I can work more independently.
What brought you down this path to find this job? In high school, I started to like math / problem solving so a career in statistics was a good match.
Is it something that just gets you by? Or fills you with a purpose? It is very rewarding to work in health research and try and help people suffering from some pretty devastating diseases.
As general advice for young people starting out or wondering what they should do, I would say try and find something that matches your interest/skills/personality and has decent job prospects. Money is important, but I can testify to the fact that if you hate your job, the money is little consolation. Although there is lots of talk about FIRE (financial independence, retire early), you need to realize that your career is likely to be a marathon, not a sprint. Find something that you can stay interested/satisfied for the long haul. If you save wisely and can retire early, great, but don't count on it at the beginning.