That's fantastic! 10K sounds like a steal to me! Go for it girl! I unfortunately don't qualify for instate tuition anywhere but even if I did, I think in MA, the UMASS degree is still more like 25-27k!
I can understand the worry about the family- what are your plans for child care while you are in the school? I do think the 15 months will fly by for you as you'll be so busy, but maybe they will drag for your partner? So maybe make sure he is a 100% on board, after all in the greater scheme of things, 15 months is nothing right?
I live no where near any family and my husband travels sporadically but long trips for work, so for e.g, he may be at home working from home Jan-March but then he'll be away 3 weeks mid July type, so I'm not too sure yet what I would do with our toddler. I can't really afford full time help, especially while paying for nursing school!
We're all going to get there in the end!