When you walk, you should speed up and take bigger steps as far as possible.

Don't touch your heels when climbing stairs.

You can make a footstool while waiting for the bus or standing.

Sit by the bed and hold the pillow on your calf, then slowly lift your calf flat (keep your instep straight) 1~2 seconds, then put it down and repeat 10~20 times.

Lie flat on the bed, do 100 cycling movements and then lean against the wall at 90 degrees 10 minutes.

But you insist that you can succeed.