(I don't know if this is the right place to post it, but I think the "textbooks" section is'nt. So I'm going to put it here.) I have been self studying S&G relativity for almost eight months, mostly from Weinberg's book on S&G relativity, but also from papers I occasionally find on web and from the help of PF members when I start threads here. I'm actually in the second year at uni to get a bachelor degree on physics. I'm not getting S&G relativity lectures yet, since these are usually at the third / fourth year of the course. Anyway I don't like introductory lectures, because I find them so simple. BTW, I started learning Calculus long before starting the course at uni. When I did start studying there, I already knew almost all of Calculus. (I wonder why the same doesn't happens to S&G relativity.) My question is, do you people think I'm too slow in learning the theory? Six months!!! and I can only derive things like: - Schwarzschild solution - Most of those expressions of Special relativity - FRW metric And of course, I understand some of the theory behind these derivations. But this is a litlle bit of the foundamentals of S&G relativity. On the part of Cosmology I know almost nothing at all!! When I turn to more advanced textbooks or even at uni when I talk to professors or guys which are in graduate courses, I see that I know essentially nothing, and it is long for almost eight months!!! I can't stop loving physics. What can I do? Maybe pay for a Phd to give me lectures on the topics I'm interested in?