Hi all So I took graduate level courses of QFT, Quantum Gauge theories and a course on standard model of particle physics. I struggled a lot but got decent grades, so why does it all still look greek to me? It's becoming very frustrating to read sentences like "the theory is invariant under an SO(4) ∼ SU(2)L × SU(2)R invariance, broken down to SO(3) ∼ SU(2)c in the vacuum ...". It's like knowing what each word means (not all though, there are always gaps like I'm still a little raw on the whole concept of symmetry breaking) but it takes forever to translate each sentence, and every paper sounds like that from beginning to end! There must be shortcuts I'm still unaware of. I'm not sure what I'm asking. If anyone remembers the initial struggle after taking these courses and familiarizing with the lingo, should you have any advice or good references I'd appreciate it. How do you get that fluent in reading in this field without losing your mind?