Yes, Sun. When I cured, I would say I knew the crutches really well and knew how to use them. But I only became a true master at them after I cured. I still had choppy speech for a couple of weeks after I cured.
When I say you might be being impatient, I mean giving the crutch a chance. Sometimes when we do not enjoy a crutch, then we immediately want to write it off, especially if so many other crutches come more easily to us. So I say, keep trying Crutch 1 for another month and then you will truly be able to tell if you do not like the crutch.