What this really sounds like, and the message gets muted by the complaints, is that the author wants you to find a part of software that interests you and follow that path. I agree 100%. Some people love front-end Javascript websites and all that entails. I find it painful. I still do it when called for but my true love is in low level protocols, embedded programming, hardware, and anything else that let's me get to the "bare metal". It too can be mundane and painful, but I find joy digging through RFCs and implementing them, pushing and popping from the stack, handling memory, and a bunch of other stuff that others might find completely boring.
So I do agree - it can be boring and you should always be looking for something you truly like doing. There is so much in this industry, the world is wide open to you.