Why did Shakespeare intended to write a vast amount of plays and sonnets ?

That is my greatest doubt of him.

Did someone compelled him to do so,or did he literally wrote them by himself?

Why did he intended to use unique and archaic words like 'thou','thee','dost','thy','art'?

Furthermore,his plays are literally intricate to comprehend explicitly.I am invariably stuck at reading the first act.
Is he psychotic?Maybe he is.

The language is wondrous.It is stupendous.If I could write like him,wow,I am blessed!!!!!!!!!:lol:

Because when he was alive those words were used, they were not archaic. And nobody compelled him, he was a playwright, that's what playwrights do: write plays. Didn't you learn about him in school?

And furthermore, hard to comprehend how? What does psychosis have to do with anything?