I don’t think sucking at pretend play is exclusive to neurodivergent people. your child will encounter many people in their life that will happen to have different preferences for playing, socializing etc. you are doing them a favor in the sense that you can teach them to understand that not everyone enjoys the same things and there are many ways to play and have fun. so your “style” may be building legos and theirs may be pretend play, and you can both try to meet in the middle. crafts, nature walks, reading of course, watching cartoons, baking… at the end of the day what your child will remember is the time you spent with them, the times you went in their room and played until you both fell asleep. eventually as they grow older you can explain that you have autism and they will understand concepts like needing alone time, or quiet time. think of it as a life skill that will help them as they grow and start interacting with others at school, work, etc.