I guess your problem comes from:

1. the confict there is between theory and practice, and also that...

2. ... you must realize that your code will be run by other's code.

3. you can't code something if you have no idea about what you could make.

4. Knowing a language by theory doesn't mean you "speak" it: that's difference between reading english and speaking it. Also the great number of different tools available to compile, link, edit a source code will make your head spin.

5. when learning how to program, most if the time a terminal is used to input/output text, because this is most simple way of dealing with programming. In fact, programmers use libraries (like Qt), frameworks (django I guess) and other shortcut code to be productive. Of course if you feel you can write your own wheel, don't reinvent it and read books about compiler design and kernel design: there's a lot to learn in these: maybe you feel it's stupid to de apps that doesn't require a lot of technicity.

6. Invent something ! Of course you could do a text editor, a game, etc. The thing is, you won't do those if you don't see any reason to: these program will be useless for you if everything you think about has already been made. Personnaly I still dreams to be able to code a facebook-like decentralized p2p protocol with chat, offline messages, etc all in one so it can be used with wireless embedded devices. Internet gives a lot of possibilities, don't forget to think about it.

I guess your problem comes from:

1. the confict there is between theory and practice, and also that...

2. ... you must realize that your code will be run by other's code.

3. you can't code something if you have no idea about what you could make.

4. You know half of the difficulty

5. Knowing a language by theory doesn't mean you "speak" it: that's difference between reading english and speaking it. Also the great number of different tools available to compile, link, edit a source code will make your head spin.

6. when learning how to program, most if the time a terminal is used to input/output text, because this is most simple way of dealing with programming. In fact, programmers use libraries (like Qt), frameworks (django I guess) and other shortcut code to be productive. Of course if you feel you can write your own wheel, don't reinvent it and read books about compiler design and kernel design: there's a lot to learn in these: maybe you feel it's stupid to de apps that doesn't require a lot of technicity.

7. Invent something ! Of course you could do a text editor, a game, etc. The thing is, you won't do those if you don't see any reason to: these program will be useless for you if everything you think about has already been made. Personnaly I still dreams to be able to code a facebook-like decentralized p2p protocol with chat, offline messages, etc all in one so it can be used with wireless embedded devices. Internet gives a lot of possibilities, don't forget to think about it.

8. In fact the theory is necessary to practice, but that's not all: algorithms and technics aren't part of the theory of programming, there are a lot of paradigms and other "standard" way to do your code: design patterns, linked lists, etc etc.