Even when I go to the store to pick up a dress I ordered online and payed for .. it should be simple

But I get anxious. What if the money didn’t go through? What if they ask to see my phone to see the receipt and a weird text pops up? What if they make me spend more and I don’t have enough money? I panick and get annoyed by EVERYONE around me. I don’t show it but I have no interest in talk img to anyone and feel insanely upset and annoyed by everyone and everything. The same thing happens when I drop things off at usps. Even easy daily tasks cause this horrid anxiety