On one hand, it’s pretty late to start.
On the other: Better late, than NEVER. (How strong is the desire, and how bad if never fulfilled?)
Consider the outcomes - Worst case: most of the cost is incurred, and the qualification is never quite achieved (Medical, which can come on at any time, or other). More likely the qualification is achieved but a position that pays the bills is never secured. (It can be a long and hard road from bare licence to a decent job.)
Best case - you replace your current income (after significant investment and effort) with a job that is flying. While this is a great thing for most of us, it often has downsides like roster or relocation.
A lot to consider, and being honest with yourself about what’s important and what the possible outcomes are.