a looper who can’t move....help

Do what your coach says.

If your feet hurt they're weak.

Again, listen to your coach.

I'm not sure what you were doing previously, but from your description it sounds like you're putting your weight over your left leg. Don't. Go for a centred weight distribution. If this is what you were doing, it could be partially why you weren't moving to your left properly.

i tink u should be jumpign left right left right to keep urself lively and u should have the mentality to attack with ur forehand if u wanna move fast. u will need to have the mentality of attacking firs

it's amazing that you got to 1900 w/o realizing that you were having footwork problems.

that's what we've been trying to tell you.  they can do that because their feet is not flat on the ground.  you need to find a way on how to relax your legs and feet so that you won't feel any strain at all even if you are bending your knees to be low. 

browniehubby wrote: Because of my good block, I tend to glue myself to the ground when the ball comes to my backhand. This seems like a good tactics against 1800 players but a really horrible one against a good 2000 player. I lose the initiative to attack when the ball comes to my backhand.

Many people have this problem. I recommend that you try to do a relatively aggressive block cross court to his backhand. You don't want to win a point here. You try to get a predictable long topspin that you can then counterloop. You move one or two steps backwards and get ready for your counterloop immediately after the block. Chances are extremely high that he'll step around and make a long forehand tospin - most likely parallel. This is what you are waiting for. This is just one among many possible solutions, but the important thing about this idea is that it gives you a gameplan with a highly predictable scenario of how you get the initiative again. If you are "glued" to a certain routine you need to break out of this routine and premade plans are usually one of the easiest ways out of this dilemma.

browniehubby wrote: Also, I'm tall and I stand too high. To make myself 'shorter', I have to bend my knee and that also hurt my movement. I don't seem to be able to move fast with my knee bent and my toes tipped.

This is a common mistake among tall players. You don't need to bend your knees too much - or even worse bend your back... What you need is a balanced position with enough muscle tension to move fast enough. You spread your legs more if you are tall, keep your back straight (otherwise you'll get back problems) and bend your knees just enough to get strong muscle tension in your thighs. You lean slightly forward to get your weight transfered a bit in front for a more stable position. As a side effect you'll be a bit more on your forefeet. You have to be fast. Find a position where you are comfortable and get enough muscle tension to be fast.

browniehubby wrote: Another question, I realise some good players tend to 'shift' their right feet forward (to the extend of slightly infront of their left feet) after/while they are looping. Their right feet will move back to its original position after they complete the loop. Is this a method for more consistency and quick recovery for second loop/drive?

This is basic topspin technique. Many self taught players don't do this and this is a huge technical mistake. You start a topspin with the weight on your right leg which is behind the left leg. During the stroke you heavily twist your waist and jump a little with your feet upward and forward. This gives forward momentum to your topspin. The stronger you move forward so to speak the faster the topspin will be. During the mini jump the waist twist occurs. This will move the right leg forward in front of the left while you are up in the air because of your mini jump. This is actually an important thing for your health also if you power loop.

Thank you all very much. I will try the methods suggest and see what happen. I'm very excited :-)

they all do.

maybe you jsut need more traning ? LOL. You cant move good if you haven't trained

Practice yr serve and 3rd ball. When yr serve is strong
you,ll be able to serve fh from bh corner and loop or kill the 3rd ball.
Additionally you said you have a good loop. But part of having a good shot is having the means to set it up.
Untill yr serves and footwork and tactical methods
for getting in are up to scratch you cannot really have a good loop.
Also theres a guy on this forum with a very good motto:
"I loop to kill, not kill to loop"
Looping isnt everything its just one of the tools, perhaps a bit overrated because people njoy practising topspin!