Do what things that you love to do, but make the added point of doing them where you might meet other people, especially young single people, when practical. Build relationships even with people you don't want to date, but that you share interests with, because they will know other people and might introduce you.
Basically, you don't go looking, you go living. While being careful not to do live in a bubble (just plain old impossible to meet a soul mate inside a bubble).
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Mom to an amazing young adult AS son, plus an also amazing non-AS daughter. Most likely part of the "Broader Autism Phenotype" (some traits).