With the internet, youtube, pdfs, software etc. i think it is possible but will depend on the subject matter and your access to equipment/resources, and your dedication and ability. I assume by yourself means you can interact with others online still.
I do agree with your, with all the resources now readily available, yes you can educate yourself, but not exactly at par if an expert taught your. Well you can be much better as well in some cases. But it is possible now. They only problem is you cant provide a certificate for yourself. That's the sad part.