HI Brinjen,
Ive just had 2 major career changes in the last 2 years.
The first was out of health reasons i just wasn't coping with what i was doing(more with post natal) and the hours and having a new baby and an older child just too much, the other was something my hubby and i wanted to do for a long time was to start our own business we have been lucky that i have the tertiary qualifications from my previos jobs that i have been able to meld them into our business.
This may not be for you and you have to bee 200% committed but it has been well worth it.
I have even considered going to uni to finish off a part diploma that i had done at TAFE and to get a bachelor of business.
So write down what your dream job may entail and look to see what you will have to do to get it or something close to it.
Its hard making that career change. But it can be well worth it in the end and if it doesnt work you will know that you had tried and wasn't for you.
Regards
Helen