You're doing great!
Every good change started with people just like you. Ask your family questions based on their own sensitivities like "why not eat our dog? They breed uncontrollable and millions get put to death without benefiting anyone. Why shouldn't I do drugs, it's epidemic you know. Why don't I steal what I want I want, it's done all the time?"
Your cravings are really more about memories. I also loved the taste of meat. I remember two months after going vegetarian I prepared a steal that was free range for my kids. I tasted a tiny piece, and wanted to puke. I can't comment on the 'taste' because bile immediatly came up my throat, and I wanted to puke as I spit it out. It was a dead animal, why would I eat a dead animal? I see dead animals on the road sometimes, I've never thought how good they would taste. I've been to funerals, they never made me hungry.
Anyway, it changes. You're diet is so much more than meatless, it's different! If you want to get into cooking, believe me, it will be sooo much more fun! Grocery bills can become much less when you discover how to make bean burgers much better than bought, and soups and stews and casseroles and burritos and stir frys and curries....
Best answer to the plants feel pain isn't to dispute that (although it is silly-it's not nerve related at all), but to say Wow, then it's really good I'm not eating animals, because they're fed sooo many plants! You're probably hurting way more plants than I ever will!
The cheese thing... hardest of all. I started by avoiding animal products but still ate cheese directly-pizza esp. Daiya, to me, is by far the best. It does make a great grilled cheese (same to me really) I usually put half of the bag in a resealable bag and freeze it. Again, your craving will be more memory related. Foods like olives, avocado, arthichoke hearts and mushrooms are good for subbing on subs and pizzas. If you have a quality pizza shop you can ask for no cheese-ask to sub it too, they usually won't unless you ask!
Your world will change. You can influence more people by simply being an example of why we don't need meat. The people I eat lunch with eat so much less meat, and follow my examples of veg dishes now. You do matter.
If we can't change ourselves, we'll never change the world.
Welcome, and come here often!
Don't let the perfect be the enemy of the good