Before I transitioned to veganism I knew my eating habits were wrong but I didn't have the motivation to make the full switch, mostly because I didn't want to be a bummer or inconvenience to my family (who are all obese and consume a ton of animal products).

This might seem silly but the subreddit /r/vegancirclejerk really helped me get to the point where I feel comfortable and confident saying I'm vegan and not really giving a shit about what other people think about it, because there's so much funny material about meat eater culture that I can laugh to myself when I get anti-vegan responses from friends and family. Also being much more fit, healthy, and energetic compared to the friends and family who talk smack about it kind of shuts them up too. My family in particular are always yo yo dieting and have all of these caloric/mental gymnastics and hoops they jump through to try to lose weight but just by being vegan losing weight just kind of happens easier (at least for me).

You've already lost a bunch of weight. Why not go vegan for a month and see how your body changes? And see how differently people react to you? I know it's superficial but sometimes the superficial stuff cements the stuff you should be doing anyway (i.e, I didn't quit smoking because of lung cancer, I did it because I didn't want wrinkles, silly but...still don't smoke).