good luck with your journey! I think that it was a good step to join this community. Whenever I find myself struggling with my diet, I find new inspiration here. I am not overweight, but I became a vegan because of severe health problems - my liver started giving up at the age of only 20 (!), my stomach was in constant pain and I was not active at all.
Now, a few years later, I am hardly ever sick and whenever I have a cold or something, I can always trace it back to my diet (it's usually a coffee, sugar, white flour combo that's making me sick!). Please do not give up, even if you cannot be a superhero right away. It's so worth trying over and over!! If you want to, you can private message me whenever you find yourself struggling.