Doing an nvq is never an easy option ( Im doing my level 4) but it is rewarding.
I too have 2 young children and loads of other commitments its just a case of being organised and making time, I used to go to bed quite early - but not anymore!!
If you can go at your own pace and have the support from a wonderful site like this it can make it bearable - I have learnt so much and it has made me reflect on how and why I do things and hopefully made me a better practitioner.
Good luck
x