I do wonder why people are scared of sharing their hopes and dreams with their partners. Surely if they care for and respect you, and your quest to improve yourself and realise your ambitions doesn't involve living in a cardboard box for a years to fund it, they would support you.
If I were to turn round to the Mrs and say, "I've given it a lot of thought, and this is REALLY what I want to do", I'd expect her to be supportive. If not I'd have serious questions about the relationship and her motives.
An unsupportive partner is probably the wrong partner in the long run. Anyway, pleased to hear you got a good response.