I imagine it is hard to keep feeling inspired when you keep programming sample code "bundles" that are purely "theoretical", i.e., carry no complexity or LOC-size required for the commercial or open-source product directions. Remember that developing and maintaining real-world projects requires much deeper technological and social skills than hacking on private projects. Consider either working on a commercial project (e.g., an app with a paid monthly subscription) that will require product-market-fit education and commercial-grade quality execution from you, or joining an open source project (e.g., the Linux kernel or satellite projects) that will require cooperation and accountability from you, as well as much deeper knowledge of only one or two programming languages (e.g., Rust and C).

> I am a programmer at the age of 18

Go to college

Get an internship during summer break.

The people you work with will inspire you.