Are you in something which is okay, but not something which makes you happy? Just from a general impression, rather than a specific memory, I'm sure you have a good job (read: well paid) and your partner's an optician, so doing fairly well for herself. From the outside, that all seems good.
But, on the other hand, I remember you posting about wanting to join the Army, but that your past has made that difficult, or impossible? That'd lead me to assume you're 'just' okay with your current job, but it's not ideal/what you actually want/whatever.
If you're not satisfied in your work, I can't imagine you'll ever really have a full ~zest for life~ outlook, or whatever. Perhaps you just need to reflect on what you want out of your work life, if you want to travel/emigrate/etc (I remember you posting about moving to NZ, right?!)? You're in a relatively good position, with your financial position/no kids(?!)/educational background, so you probably have the freedom to find and to do what makes you happy.