Does Cyclonic Rift's overload affect your own permanents?

Cyclonic Rift reads, when overloaded: 'Return all non-land permanents you don't control to their owners' hands.' The key phrase is 'you don't control.' This explicitly excludes any permanents you control, so your own creatures, artifacts, enchantments, and planeswalkers are completely safe.

The overload mechanic (CR 702.96) replaces the spell's normal targeting text with a new effect that applies to a broader set of objects. In this case, the replacement text changes the single-target bounce into a board-wide effect, but the restriction 'you don't control' is baked directly into the overloaded text itself.

It is worth noting that 'control' and 'own' are distinct concepts under CR 108.3 and CR 110.2. You control permanents you put onto the battlefield (generally), while ownership refers to who brought the card to the game. Cyclonic Rift cares about control, not ownership, so even a permanent you own but an opponent controls will be bounced.

Concrete example: You overload Cyclonic Rift. Your opponent controls a Serra Angel and a Llanowar Elves. You control a Snapcaster Mage. Both of your opponent's creatures are returned to their hand; your Snapcaster Mage remains on the battlefield untouched.