Things move quick and the domain is new, my confidence is dwindling which is causing me to become a recluse. How can I get out of this bubble and learn effectively without feeling like 300 things are constantly in my working memory?
Stick to the old, the familiar, the known. Take comfort in the fact that you are highly knowledgeable in some areas and build on that. Don't chase the new hotness because it's usually hyped up and you may want to use it because of mere peer pressure.