I feel like my supervisor is deliberately obtuse and contrary.
If he thinks this is motivational, then he is in for a big surprise.
I'm not needy for plaudits, but if he doesn't start telling me I'm doing something (anything) right soon, I'll bin it.

That is all.

What is he doing?

I think we are going to need a lot more detail if any of us are going to be able to help.
You sound close to the end of your tether though.