My grandfather owned a meat processing plant.
My father was a cattle rancher.
I showed/sold cattle through 4-H for 10 years.
I initially went vegan because I was studying philosophy in college, and I moved into a household with a couple vegans. I researched the ethics and science behind it for 2 months, then, after watching Earthlings, I decided to go vegan immediately from being a full-fledged, meat-for-m'gainz, ribs-for-every-birthday carnist. It was just the right thing to do.
I've been vegan for over 3 years now and an activist for 2 of those.
Honestly, the sidebar on /r/vegan was really, really helpful for me. It has links to a lot of great sources and provides a fantastic FAQ. Some other good resources:
any discussion of vegetarianism/vegan on /r/askphilosophy
YourVeganFallacyIs.com
on Facebook
and once you undergo the vegan initiation ritual of snorting your weight in nutritional yeast bringing hummus to a carnist BBQ, /r/vegancirclejerk is pretty great
again, Earthlings if you wanna get woke af
also, despite it's sketchy name, Cowspiracy is a great documentary on Netflix about how livestock are terrible for the environment