Self-diagnosis after very thorough research is a good workaround when competent and affordable diagnosis is not available as is still too often the case.
Some other things to consider.
Are your autistic traits impairing your life, are they manageable?
Even if things are manageable now things can and do go south. It might be better to get a diagnosis now and not start the process when you are mentally fragile and are financially worse off due to said crises.
Are you the type of person who needs an expert to validate your suspicions, can you move on with your life without that confirmation?
One option is what I call an "unofficial diagnosis". A professional says you are Autistic but does not put it in your records. A solution for those worried about somebody hacking into their medical records. It should also be cheaper as the clinician does not have to write up a diagnostic report. But you will not get benefits and accommodations.
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Professionally Identified and joined WP August 26, 2013
DSM 5: Autism Spectrum Disorder, DSM IV: Aspergers Moderate Severity
“My autism is not a superpower. It also isn’t some kind of god-forsaken, endless fountain of suffering inflicted on my family. It’s just part of who I am as a person”. - Sara Luterman