I cannot wink my left eye inn?

You had a stroke, go to a doctor

your left eyelid just doesn't want to wink.

For many people it often takes practice....

Start working on it..

I can do it on both but for me it took so long to master winking on the left eye.

Yes

I'm similar. It's harder for me to wink my right eye than it is my left

I can wiggle my ears, alternately raise my eyebrows like Jim Carey does.

I used to not be able to, but I can now.

I can blink my pineal gland