Have had a little look at the video - a few thoughts from me
1 - given the amount you move and the guard you take I am not sure the trigger is going to make that much of a difference to you - I really don't see it benefiting you in the video.
2 - you trigger movement if you do have one needs to be earlier so you are still at the the point of delivery.
That aside if I was coaching you I would work on two things -
trying to get you much stiller at the crease before the ball is bowled and try to keep your eyes level and secondly you walk through your shots/play shots with your back foot in the air almost every time.
your timing will improve and you will hit the ball harder if you stay in position through and after the shot more and stop your hips coming through and you going for a walk after the shot.
with those two small changes I think you would start looking like a really compact batsman
for an example of what I mean - for stiller at the crease - watch
https://www.youtube.com/watch?v=y-VEb8_kEYIand for better hips see:
https://www.youtube.com/watch?v=3EZ5Kej9uJs (although the stig looks a little short of form in both videos!)