Puckpilot is 100% correct with his advice. With proper technique, you can totally set aside stick measurements. Yes, a different length or lie might help... but even then, you still want to learn and use proper techniques.
Im 5’8” barefoot. The average uncut stick is usually ridiculously long for me. Earlier on, I used that length... but I had to be even more focused on technique, otherwise pucks would be sliding right under my blade and I’d be whiffing on shots... etc. I immediately jumped to your conclusion and lowered my lie. Yes, it made things a little easier... but I was still required to maintain control over a stick that was way too long. Finally, I went back to a 5.5/6 lie and cut the stick. This brought the blade to a better position, as well as improved my ability to handle the stick.
The bottom line is that technique always comes first. But after that, you need to find the best balance of length and lie for your body/stance/preferences.
You’re tall, but mentioned that your proportions are off (short legs/knuckle dragger arms). Try cutting a stick to a length where the blade lays on the ice evenly, and see what you think. It will also help with the hand positioning you are looking for. If you later realize that you did prefer the old length... THEN look into a lower lie.