I thought about not sending this as I have been very unsuccessful in advocating for veganism, but considering the other comments I thought I may as well share.
When I became vegan at 16 I had my worldview shatter. I promptly went and told all my friends about veganism, the horrors of animal agriculture, and urged them to become educated on the issue. All, with one exception, got upset at me when I talked about it and eventually stopped being my friends, partly due to me advocating for veganism. I think the last straw was when I sent the group chat Dominion after I had seen it. It was very traumatising to watch and I wanted the others to know of the horrors they were contributing to (especially considering we were all living in Australia), but apparently I was "making everything about myself" again... I ditched their sorry asses soon afterwards.
The only exception to this, ended up watching some Earthling Ed videos I had sent and ended up becoming an "ethical" vegetarian 😭. I tried explaining how the dairy industry is not "ethical", but they genuinely seem to not be able to understand or care enough to do anything about it. I was mortified that I had created a vegetarian.
Afterwards, I didn't have many friends due to being vegan—among other issues—, but the one time I did make a new friend (via falling in love with an omni) I did basically instantly convert them to veganism just by explaining that meat is murder and veganism is based lol. I think they just trusted my word for it and they are a super based vegan still after years.
So becoming vegan, I lost lots of friends (although veganism was just one of many things that amounted to that), accidentally converted one to vegetarianism, and only once successfully created another vegan. I'm quite ashamed of how little (perceived) impact I've made, but recently I have been quite proud of my one convert as they are my best friend now and I don't have to deal with carnists on a day to day basis.
I'm doing my part!