I lose my Remote to my Roku
Which Roku? Let us know the model number.
You can buy Roku remotes at Walmart, Best Buy, and other such stores, as well as online directly from Roku.
If it's not a Roku Stick, the stores I mentioned, as well as many others, have universal remotes that can support Roku.
You could be back up and running as quick as you can get to to the store and back.