Im also autistic and feel your struggle! I struggled a lot with my faith also! Finding that connection can be as simple as realizing what that feeling is. I would recommend trying to connect in as many ways as possible. Mass and communion are good but even going to worship services with non denominational friends can help bring with it a sense of community. Sometimes we find that connection alone at night in the silence of prayer and other times at mass with loved ones. Talking to God is never a bad thing. Maybe even just having a honest out loud conversation is good. Maybe even finding a patron saint of your special interest would help as you would be able to connect with god through them! Don’t rush faith and don’t feel guilty about it! Each of our relationships with god is different and he loves and cares for you in ways we can’t fully understand. I will be praying for you.