April (fool) dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.

Interpretation 1 — Stearn Robinson - Tom Corbett

If in your dream, you were the April fool, you will have control over a new situation; be moderate in using this unexpected power.

If the dream concerned someone else being fooled, your success will be delayed.

If you dreamed of it being April when it isn’t, you’ll find yourself traveling, probably abroad, fairly soon.

Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 2 — Internet Archive - Anonymous

To dream that you are made one means that you will soon be given power over another; be careful to use it well.
Source: Mystic Dream Book Author: Internet Archive - Anonymous