Sdready wrote:well today I practised sitting on the couch... which is lower than a chair... and the drum was leaned TOWARDS me... [...] Are there Djembe players wo hold their djembe that way?
Not that I've seen. Even though it felt comfortable to you, I suspect that this isn't going to get you anywhere productive as a technique. For one, most places you play won't have a seat that low. Second, having just tried this for an experiment, I suspect that you will severely tense up over time. At least for me, when I play that way, even though my arms are still sort of comfortable, I find that I end up with a lot of tension in my abdomen and lower back. It feels like a prime recipe for getting tired quickly.
I'm a traditionalist when it comes to the djembe. People have been playing this drum for hundreds of years; during that time, I think its pretty much certain that just about everything that can be done with this drum has actually been tried many times over. What we ended up with is what passed the test of time: the stuff that works. It's no accident that posture, tilt, striking technique, and so on are what they are. They are that way because they work. So, making radical changes such as tilting the drum the opposite way and sitting lower, is unlikely to be the right thing: if it were, everyone would have been playing djembes that way for the past few hundred years.
Do take your technique seriously, and pay attention to the feedback from your teacher (which tacitly assumes that your teacher has good technique and bothers to pay attention to yours). Having the right posture, shoulder, arm, and hand position, and the right striking technique is very important if you want to go anywhere. Good technique is the key to good sound, stamina, playing relaxed, and playing at high speed. Technique likely is the hardest--but also most profitable--thing you will learn on this drum.
Cheers,
Michi.