I'm think I might be mathematically illiterate?

Let me explain. I'm a junior majoring in pure mathematics, and I've realized that I've gone through the vast vast majority of my "high maths" courses using little to no notation. For the more advanced but still application-based classes (math methods for x, etc) of course i use the calculus and algebra and all that. But for the abstract, proofs-based kinda stuff, I use virtually no notation. I verbally reason through almost the entirety of my problems wherever possible, only using basic algebra on occassion. I manage to do well enough, but this is probably my biggest road block. What's wrong with me? Why's my formalism so shit? It feels like I missed a class where I was supposed to learn all this symbolic bullshit but never did