“Don’t worry. I have a plan”

–No se preocupen.–
Verb: PREOCUPARSE (to worry oneself)
Negative Ustedes Command: Present Subjunctive
PSJK: Go to YO, drop the O, add the OPPOSITE”
PREOCUPARSE becomes PREOCUPO, then PREOCUP, then PREOCUPEN to match ustedes.
Subtract the “SE” off put it in front of the verb.       –No se preocupen–