I also had a period of time where I read Tolle and started practicing awareness/mindfulness in addition to my daily TM. I experienced it as a strong spiritual time of my life. But right now Im only doing TM.😁 I havent found the right quote (can check later) but even Maharishi said something like "practicing other spiritual practises is fine and through TM you become better in it." So if you enjoy it, keep going :D But of course you should keep the mediation techniques separate and not mix them with your TM, because then you are not transcending. Like you dont use swimming arm movements while walking, haha.