It definitely sounds possible! Seeing things about autism and feeling like they relate to you is I think a really common way for people to figure out that they're autistic. The sense of relief you had in learning about autistic traits sounds really similar to what happened to me.

For your question "what you should do now" I think the answer is: "what do you want to do?"

You don't need to get an official diagnosis unless that's something you think is important or helpful. If you have difficulties that you think are autism-related and a psychologist might help with, you can do that, but there's definitely no need to. (And sometimes seeing a psych/therapist for autism is more trouble than it's worth, apparently.) There may be opportunities in your area for either social meetups or support groups, that could be useful in learning more about yourself or meeting other autistic people. I'm not sure if you've run across it yet, but the Autistic Self Advocacy Network has a lot of info, in particular I found this guide for dealing with college had a lot of really helpful stuff in it even though I'm not in college. I also found talking to and reading blogs by autistic people really great and helpful for learning about myself.

Is there anything specific you want to talk about/do/have help with?