Javeer, I think you are so afraid of writing that you don't even want to seriously address the issue. You have yourself so tied up in knots that you are talking in self-contradictions. You say "it's not lack of motivation, I just can't bring myself to write." I would say "just can't bring myself to write" is precisely a lack of motivation. You say "I know I can write," and then you talk about your "lingering feeling" that you can't write! Again, you're contradicting yourself. You're talking in circles because you don't want to face the fact that it's easier to talk about why you can't write than it is to actually WRITE SOMETHING.
But I think that's the crux of the problem. You're simply afraid of failure. Well, forget it, Javeer. So is everyone! ALL writers are afraid of failure. The greatest writers are probably more afraid of failure than anyone. It's what drives them to write more, to work harder, to do everything they can to improve so they will be successful.
Writing is a terrifying thing. You're putting your heart, soul, and the contents of your mind out in front of the world for everyone to see. Wouldn't that be scary? Of course it would! It's absolutely bone-chillingly horrifying, and it's what stops most of the world from being writers.
So here's the news, and I'm not going to sugar-coat it. Do you really want to write? Then let me tell you something. All the tricks and devices and gimmicks and ways of fooling yourself into getting something written aren't going to help if you can't take a deep breath and say, BY GOD I AM GOING TO DO THIS! You have to overcome the terror of the blank page, as it used to be more commonly called in the days of pens and paper and good old-fashioned typewriters. Just looking at an empty white sheet of paper onto which you were supposed to put some new writing could send some writers into something approaching panic attacks, and I'm not talking about would-be writers; I'm talking about world-class ones.
So there you have one helpful note of reassurance: You are in very good company. And here's the one trick that actually works: Remember there is no such thing as failure. If you write something, you have already succeeded. You have overcome the terror of the blank page. Tell yourself this: You're not going to die if you write something. Does that sound silly? It's not. Writing isn't a matter of life and death. Put it in its place. Don't let it defeat you. You are the master of your own writing. If you really want to write, then that means you want to tell the world something, don't you? SO TELL IT. You can talk, can't you? TALK TO THE WORLD. In your writing. Just start talking. In written form.
Does any or all of this sound harsh, too tough? Fine. So be it. I teach writing. I edit writing. I have never seen anyone become a successful writer if they couldn't handle this tough love. This is the reality, Javeer. You're either a writer or you aren't, and that's defined by whether you can have the courage to write. I say put aside your fear. Believe that what you say matters, because it does. You can play around with gimmicks, or you can pick up your sword and slay the dragon.