Saw your video , I don't play pen hold , so you should wait for somebody who plays pen hold to confirm these observations ....
anyways, I personally think you would benefit greatly from getting lessons from a coach, playing in shoes that are less heavy should help as well ...
1. TBH : I felt your backhand form is better than your forehand form , you are rotating around the elbow and not moving your head too much, you need to just play slower and ask your partner to try to block consistenly and build your form from there onward ...
2. On the forehand I thought that in order to achieve weight transfer you are moving the entire weight from one leg to the other which is resulting in not much waist movement , and a forearm snap that is too slow ... and then the head is moving too much , you will have trouble in increasing the speed of the loop and being consistent because you will have trouble in reading the succeeding ball if your head is bobbing up and down ...
I think its best to quickly get hold of a coach so that you can fix the basics , it will be difficult to unlearn issues in your form the more you keep practicing it ... also , I feel you are on the right path , you should critique your own video and compare it with videos of pro players teaching fundamentals ( I will not try to emulate match play videos because its a different proposition )
and become conscious of what mistakes your doing