Thanks IA, you are right, my path is my own journey and I should find the right practice that is right for me…'ve heard that before, done that before 
Gayatri Mantra was given to us by our teacher and advised to sing every morning or before any practice of Asanas… I like it, I’ve been reading beautiful texts mentioning Swamis who sang this Mantra for hundreds of thousands of times, and it’s very inspiring
Now my question was just a slight detail, which you are right, should normally come from my teacher, my “assigned” Guru, my mentor… anyway, where I live now and at the present time of my life, I don’t have any assigned Guru, my teacher is a man of his time and has his businesses to attend (teaching Yoga on several other places, where opportunities can take him) and I am keeping up with my practice, truly motivated and moved by my love for Yoga…
So I practice, I read books, I meditate, I observe my body, how my mind and spirit change day after day, how I feel so much better day after day and how it helps me to build love in myself…
But I am at a very early age of Yogic practice and study, only 3 years, and I am still in the process of finding out more about the truth beyond the actual aspect seen of Yoga, my practice feels more experienced than yesterday but I am still a novice compared to tomorrow’s… and sometime external help can be this little kick to climb this additional step that will make a difference and waive doubts in my mind, and in today’s world, Internet and Yogaforums.com can replace the advice of a teacher (only for some slight details like this one, not for an actual practice,don’t get me wrong once again)
So my question was simple and needed a simple answer:
I have read in books that chanting short mantras like Shrim, Ram, Sham, Ksham etc… are very good for pacifying certain excess states of the humors or Doshas, so can thse Mantras be integrated in the chanting of Gayatri before my Asanas practice? and how many times is it usually done?
Thank you if you can help me with that, 
Namaste
ElNino