You haven't mentioned which hard skills you've already mastered.

* Abstract reasoning - everything in programming is abstraction

* Critical thinking - is the first way you've thought of to solve something actually an optimal way? how could you improve it?

* Problem decomposition - solve large problems by breaking them down into smaller component problems

* Multiprocessing/multithreading and IPC - at some point one process/thread isn't enough

* Networking fundamentals - may not contribute directly to better programming per se but will for sure help with debugging/troubleshooting