All of my work projects have basically been crying out for me to use social media. I've had magazines reach out to me, only to back off once they knew my social media game wasn't that robust. Book publishing is like that as well, and it's understandable. I've been putting off using social media professionally simply because to me, for some reason, it feels like showing off rather than being recognized because of the quality of your work.
Despite my reservations and my lack of knowledge, I don't think that this is any different than any other behavior. First thing's first - start a habit.
I've already started today - When I'm done with my writing sets, which now include blogging/research, I'll do a small habit - 10 minutes - of either research on how to use social media or actually start sharing stuff.
Positive: This will help me get my message out to the world. It will also help me better accomplish my goals of publishing. But perhaps most importantly, it will allow me to connect with other people who are doing similar things to me. What I want is to be a part of a community of like-minded experimenters and eventually help a lot of people.
Stumbling blocks: There are a lot. I've always felt like I'm trying to be a part of the cool kid's table, professionally speaking. I feel like the world is conspiring professionally to keep me out of that crowd. I feel powerless, like it doesn't matter how good I am, I'll never get the recognition and respect I want. Social media appears to me like a waste of time with limited ROI. I could theoretically waste all my time on my phone, and I see that scattered potential in some of the people I know around me. I'm afraid that I'll get addicted to it and fall into a sink hole of time where my actual content gets worse and worse. In addition I feel that my inability to grow my online social presence will continue to keep me back in my work.