Load Balancing doest work on my RB951ui

Hello My friends..!
so i am trying to setup load balancing on my RB951ui, i used this method from MUM lebanon 2019
https://mum.mikrotik.com/presentations/LB19/presentation_6360_1548749570.pdf
but here is what i get -(see the counter parameters in the mangle and the NAT rule in picture below )-
so as you see all the traffic from WAN-2 not WAN-1, so where is the glitch in this config..??!
LB.txt (2.26 KB)
mangle-1.PNG
nat-1.PNG

What config ?
Unless you show it, nobody is going to be able to answer since a crystal ball, while handy, does not exist.

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Remove sensitive info (serial number, WAN IP, …)
Post between [ code] quotes.

If you want PCC load balancing then this is the ref I use;;;;;;;;; https://mum.mikrotik.com/presentations/US12/steve.pdf

If its load balancing via bandwidth based its : https://mum.mikrotik.com/presentations/US12/tomas.pdf

Mr anav please can you tell me how can i replace the traffic monitor rule in this picture in ROS v7.5..?
so where i have to put this script ..?
trafficmonitor.PNG