You do Istikhaara
yourself.
The Messenger of Allaah (sallallaahu alayhi wa sallam)
taught the Companions (may Allaah be pleased with them) how to do Istikhaara.
He (sallallaahu alayhi wa sallam)
did not do it for them.
Follow the Messenger of Allaah (sallallaahu alayhi wa sallam). Follow the Sunnah. Learn and do Istikhaara yourself.
Having a dream is not a condition for the validity of Istikhaara.
Read the wording of the du'aa of Istikhaara. It will surprise you. You will learn that Allaah will either make the matter easy for you or keep you away from it.
Allaah is not restricted to giving you the results via a dream.
Neither does the hadith on Istikhaara mention a dream.
Even the scholars outlined that you don't have to have a dream.
Allaah has many ways to make something easy for you or keep you away from it.