Allow for up to 2 years living costs as well (no pay while training and looking for a job).
A turboprop operator will pay around £20k pa. Having done a couple of years of that, expect £35k from a loco 737 operator.
So, no, it is not financially worth it. Quite the opposite in fact, especially considering you will be out of the housing market for a long time (unless you are so rich you can afford a house and the training!)
Only do it if you absolutely have to, due to a lifelong sole burning ambition, knowing it is what you were destined to do and that you'll be very good at it.
If you value financial security, weekends, seeing your family, christmas, summers or your sanity, then don't bother.
Good luck!