Programming can be a life long journey with so many facets and skills. Do not listen to that voice telling you to stop and just keep going :)

You can lose days living in your thoughts mentally mapping data flows, that is when the real joy kicks in. Such a wonderful mindscape to visit :)

Keep picking different small projects and challenges and grow from there.

When you feel comfortable with one language pick another and keep going. Each language brings new ways of working and manipulating data and each will tell you different skills.

When you find the language that really clicks with you make it your home but keep learning others.  For me C# is my home but I have fallen in love with F#.

The key languages to learn are

* C Style - C, C++, C# or Java. Once you know one they are easier to move between.
* SQL - Database interaction gets more important as projects get bigger.
* JavaScript - Looks like a C style but has real differences. Not really OO and not Functional but can do both.
* Functional - This is your Lisp, ML, Haskell. All very different but all common roots in Lambda Calculus

Hope that helps you fight against that voice and keep going. I am in 35 years deep now and still learning!