I think it’s wonderful you want to bring in the new year with a commitment to loving yourself!! There is a thing on facebook right now called “What’s your New Year’s Revolution?“That might help you through the beginning bit of the year. Also Marilyn Wann is posting links to lots of helpful and thoughtful resources at the moment too! I should mention that practicing self acceptance isn’t going to help you be totally in love with yourself overnight… you’ll likely experience cognitive dissonance because you hear one thing in the “real world” and another in the fatosphere, and you’ll have to wrestle with the conditioning you have grown up with too.
With regard to plus size clothes, I make some stuff but it usually doesn’t turn out too well because grading up patterns is difficult and usually leads to tears and wasted fabric! I have bought a book to help me with that called “Fit for Real People” (and the title is kind of not great, but apparently the content is good.) I buy clothes from Evans, New Look, Asos Curve and City Chic mostly but also from places in Australia like Big W, Kmart and Target.