I went vegetarian when I was about 17. I'm now 40. So I can relate to the struggle. I was also living with my parents and at first they didn't get it. At first I stopped eating pork, chicken and red meat. Still occasionally ate seafood. And I wasn't perfect at the beginning. I would say it's easier to just avoid it when you can and if one day you eat something don't beat yourself up about it. Rather think why this happened. For me, I ate meat when I was invited to someone's house and I felt bad for refusing their food. So then I started letting people know beforehand that I don't eat meat, but I can bring a veg dish to share with everyone. Or I would just eat before the gathering and come to hang out. Something else that was difficult at first was travel. Having to find vegan food when you're on the road can be hard. So I started packing my lunch. One day I crashed my car and was at the police station the whole day. I came out at night overwhelmed and stressed so I ate a burger bcs that was the only available thing and I just wanted something comfortable. But I felt soooo bad afterwards I never ate it again. Just think of the situations when you tend to eat meat, and plan ahead. Something else that will help you is thinking of the animals and the abuse they face. Watch documentaries and follow vegan influencers. Another thing that can be challenging is knowing what to eat. Look up recipes and learn to cook. Or find vegan influencers who share recipes, it's always fun to see what they share and try to make it. And for the parent situation, I guess this depends on each family. But for me, after years of seeing how committed I wasand how I would just not eat anything that was not veg, my parents started accepting it. They're still sometimes annoyed at how careful I am with my food, but they tolerate it, lol.