Trance, yoga, breathing exercises, and quite a few other factors help here, and obviously are not here.
60-70 SATANAS regularly is very dangerous for beginners. Way too much.
3-9 should suffice if you're new.
Practice a proper meditation program (absolutely the 40 day program if you haven't even opened your Chakras yet, then a proper routine).
And lower the reps significantly.
Then give it time.