See if you can find this book in your local library: "So Good They Can't Ignore You: Why Skills Trump Passion in the Quest for Work You Love".
Abstract: "In this eye-opening account, Cal Newport debunks the long-held belief that "follow your passion" is good advice. Not only is the cliché flawed-preexisting passions are rare and have little to do with how most people end up loving their work-but it can also be dangerous, leading to anxiety and chronic job hopping.
After making his case against passion, Newport sets out on a quest to discover the reality of how people end up loving what they do. Spending time with organic farmers, venture capitalists, screenwriters, freelance computer programmers, and others who admitted to deriving great satisfaction from their work, Newport uncovers the strategies they used and the pitfalls they avoided in developing their compelling careers.
Matching your job to a preexisting passion does not matter, he reveals. Passion comes after you put in the hard work to become excellent at something valuable, not before.
In other words, what you do for a living is much less important than how you do it.
With a title taken from the comedian Steve Martin, who once said his advice for aspiring entertainers was to "be so good they can't ignore you," Cal Newport's clearly written manifesto is mandatory reading for anyone fretting about what to do with their life, or frustrated by their current job situation and eager to find a fresh new way to take control of their livelihood. He provides an evidence-based blueprint for creating work you love."
A career these days is about reinventing yourself every 10 years or so. I was interested in engineering, but in the '60s women didn't do that. Like you, I went to a Big U to escape my small town & upbringing. I graduated, but with a degree that's not even being offered today. After a year or so working in retail clothing distribution (JC Penney), I decided I really wanted to learn programming & searched for a company that would train me on the job; computer science in colleges didn't exist then. I discovered I am really good at it & absolutely loved it. From there I've been a systems analyst, run my own applications software company, sold computer systems to businesses, & then retired when our son was born. Every career step depended upon the last, & I loved every minute of it. I still work with computers but for my own amusement. I'm not suggesting that you do what I did, but as a previous poster suggested, try something that uses what interests you now or in the past. You don't necessarily have to go to university again. If I were starting today, I'd still teach myself coding while going to community college to get some certifications in Mac & Microsoft.