Hi Noah, welcome. Many people here are self-diagnosed and you are unlikely to encounter anyone on this forum who does not accept you because of it. This is a very inclusive, helpful and supportive forum. I began with self-diagnosis and have recently had a formal assessment. Where I live getting an assessment as an adult is difficult and costs quite a lot so not everyone has access to a formal diagnosis. My psychologist told me that 4/5 of the adults she has seen for an autism assessment turned out to be autistic and the 4 who were autistic had initially self-diagnosed, whereas the fifth person (also an adult) was brought for assessment by parents who suspected autism. Trust your self-knowledge and your ability to research this topic. As you learn more you will discover that the term Aspergers is no longer an official diagnosis though some people who were given that diagnosis still use it. I believe it was discontinued in North America before being discontinued in the UK but I am not sure about elsewhere in the world.
Just out of curiosity, since we're practically neighbours and it sounds like you've looked into it more than I have... Do you know how much it costs here to get a diagnosis for adults?
Also, hello from the Kootenays!