This is going to be hard! But let’s see how it goes!
I found this article that outlines some pros and cons of eating vegetarian: Pros and Cons of Vegetarianism. For the most part, it seems important to replace meat with high protein foods and lots of fruits and vegetables, rather than sugary, fatty and sweet foods.
I also found this graph of a good serving size of items to eat.

Source: https://nutrition.org/can-vegetarian-diet-healthy/
Hopefully, it will help me eat healthier! I think mostly I will need to make sure I get enough protein. Wish me luck, I’ll keep posting as the month goes on and I complete other things as well.