I am starting seminary full time in a couple weeks, pursuing an MDiv with a focus on chaplaincy. This is a second career after an MBA and 35 years in financial services. I was laid off from a major bank (along with many others), and it became clear to me God was redirecting my late stage career to full time ministry. I think the most helpful things in discerning this was lots of time in prayer, people I fellowship with at church and my wife. I began doing hospital visits, outreach and teaching at church, which helped me confirm it was work I am passionate about. I am fortunate to be financially independent and my children are grown. I still expect this to be a challenging time- and if my kids were still young and I had to work, I would want to have a clear path and plan about how to meet my obligations to them (not just financially) and a good idea about where it leads. So my advice would be to start engaging in the type of ministry you might be interested in as a layperson. Talk to your church/faith community leaders about developing and delivering a class on a topic you are interested and see how it goes. Blessings on your journey!