Keeping your shins to the tongue of the boot is a generally valid principle, and one you should continue to follow as you advance. The pressure on the boot tongue isn't actually what allows you to absorb the terrain better. At least not directly. With your shin against the tongue, you will naturally have your knees bent and in a better position to absorb those bumps.
That being said, I'd strongly advise some more formal training. Without it, you're bound to hit a plateau, and probably sooner than you'd like. And to be very honest with you, if you're asking questions about staying forward, it means you are lacking a fundamental understanding of ski technique. Staying forward in stance is something instructors teach from day one, and proper stance is the foundation of all good skiing. I'm willing to bet that if we took a look at your skiing, we'd notice a lot of inefficient, dead-end movement patterns that are going to end up holding you back.
I'm not trying to be a buzzkill, but giving you a very straightforward, blunt assessment based on what you're saying.