Real Analysis and Thermal & Classical physics should be cool, I'm slightly scared of quantum mechanics & special relativity
Haha I was thinking the exact opposite. What (little) I know about quantum mechanics & special relativity I love.
These two areas of physics are obviously the most interesting to me, but some parts of them can be really weird and difficult to understand. Especially the paradoxes in special relativity (e.g. Pole in shed paradox).
The maths in special relativity is extremely easy (Lorentz transformation maths is easy), but conceptually it is much more difficult (understanding what data is what in an event takes up 95% of the work).
Quantum physics such as atomic physics, quantum light model is all good, but shrodinger equations are confusing (not doing the maths, but the concept behind them).
As I said though, I love these areas of physics and am probably scared because we only spent 2 weeks of lectures covering quantum mechanics and 2 lectures covering special relativity.