On those specs? Well, you could try Librewolf and ungoogled-chromium, but I imagine they'll be a tad sluggish.
NetSurf, Dillo, and Links2 are more suited to low-power machines, but they don't support HTML5. Also, NetSurf's JavaScript implementation is fairly old, and the other two don't support JS at all. Furthermore, Links2 doesn't support CSS (by design).
12, but I didn't pin down what I specifically have until I was 17. Today, you're looking at autism (awaiting formal diagnosis; possibly AuDD), but I'm quite sure there is more that I haven't yet identified.
