Using the subjunctive

Question

Tengo miedo de que estoy demasiado cansada para conducir.

o

Tengo miedo de que esté demasiado cansada para conducir.

Isnt the first one correct 'estoy demasiado' because there is only one subject.

Answer 1

Well actually since both clauses are referring to the same person, yo, then the subjunctive is not necessary. You'd say "Tengo miedo de estar demasiado cansada para conducir."

Answer 2

Well actually since both clauses are referring to the same person, yo, then the subjunctive is not necessary. You'd say "Tengo miedo de estar demasiado cansada para conducir."

Just not necessary?

Or.

Not even allowed?