Don't go near any prat calling himself/herself a 'life coach' - all they'll want to do is make you needy and make you pay!
Set yourself a challenge - try the Open University (it can be addictive and, with a daughter at university, competitive) or learn an instrument.
As for lifestyle choices, think long and hard before making any sort of change - it's very easy to 'downshift', but darned hard to climb back up if you later get second thoughts. If you do decide to downshift, do it with both eyes open and the realisation that whaterver path you take it's going to be hard work (often bloody exhausting) but can be the best thing you'll ever do. Time spent in constructive thought now won't be wasted - and if you want to know something, ask! Whatever path takes your fancy will have been travelled by others like yourself, so ask them before you make a step. The internet is a useful tool for that - there are forums and discussion groups on almost every subject under the sun (even folk and blues, so I've heard!) and among them you'll find good advice. You'll also find liars, dilletantes and bullshitters galore, but provided you keep a clear head and remain on the friendly side of sceptical, you should be OK.
Good luck, and safe journey!