Hello Kmac !! Bro the tags work perfectly fine the thing its you need time to get bennefits … you want to change thought patterns that might be with you all the time … give it time … be aware , try to meditate … well this last one its my opinion but for sure give it more time …
Also mmmm the sensivity theme its very subjective and personal … maybe you need a litle more of time to develop your energy/nervous system to sense the tags . You need to trust that its working , even if you are not able to feel it .
The cognitive enhancer its a beautiful tag … give it more time bro … in months you re gonna have a real and PERMANENT improvement :) . So be patience bro , good things take time!!
i wish this can give it to you some hope and strenght to keep using it ! Also you can do some other things … like ego disolution , inner alchemy … Get the amazing "Awakening Course " to develop more your energy sensivity and overall energy abilities . Link over here : https://course.enlightenedstates.com/home/course/energy-awakening-course/3
There also alot of more tools that can combine with tags and get “faster” results!! Im pretty sure there is a lot info in other topics . 
Good luck Kmac!! and be faithfull !!
Important note : Brain Growth Work - #84 by El_Capitan_Nemo