So, my background in Number Theory is - Elementary Number Theory(that I did mainly from David Burton's text) and Serre's A course in Arithmetic(first half on algebraic methods that included p-adic numbers, Quadratic forms over $\mathbb{Q_p}$, Hasse-Minkowski's theorem etc.)
Having read this, I can say that I would certainly like to study some more of number theory. So, intending to do exactly that, I decided to some research on my own but that only helped me making me more confused as it turns out there are a zillion topics one can study in number theory with my background, like, number fields, modular forms etc.
My questions are-
How should one decide what they want to study? IMO if I had some broad picture of what we are really trying to do ultimately in each of the branch, that could be of some help. So, can anyone here give me a rough break down of different branches of number theory?
As of now, I don't really have any preference between analysis and algebra as I enjoy both of them(except maybe things related to groups, which I don't find very intuitive and hence not interesting) but people mainly classify number theory as these two branches. So, to decide what I want to study next in it, do I need to choose one of these two?
My background is: Algebra(Group theory, Rings and Modules, Field and Galois Theory), Analysis(Fourier and Complex Analysis from Stein and Shakarchi, Real Analysis, General Topology) and above mentioned Number Theory courses.
Thanks a lot in advance!