I don't eat much dairy by choice.
Alternatives to milk are - soya, rice, almond, and oat milk.
Rice and soya milk are available everywhere, particularly soya, look for Alpro. Personally I prefer rice milk, but in its sweetened form its got a lot of sugar in it. Oat milk is yummy on cereal.
I love soya yogurt, and its really healthy. Alpro make a dessert thats really nice as well, I forget the name off hand but it comes in chocolate, vanilla and caramel.
I like soya cheese spread, but soya hard cheese (cheesley) is not that nice.
I don't find a life with little dairy in it very hard at all, and I think its healthier. Pop along to Holland and Barratt and have a look and maybe try some dairy alternatives and see if anything works for you. Good luck!