Coming back here after years to rant about... myself.
TLDR: I fucked up and now have to call a thousand people as a dev, I'm not even getting paid for it and they all get crazy about a random ID that got assigned to them, so now I want to throw away all my electronics and become a skilift operator.

Stupid me deployed a project shortly before we have the largest amount of orders in the year. (Like 90% of yearly orders in a couple minutes cause they are sold out fast and people wait to order first)

I got this horrible legacy "plain self written framework php" project which I tried to upgrade state of the art.
There was one piece missing to upgrade everything and nicely deploy it to some fresh new servers which can handle the high load which peaks at the time orders open.

So I did it the day before orders open and... everything worked well! Nothing crashed.
I wrote my client to wait a little before he confirms the orders, since after confirmation each of the people who ordered will receive an email where they can choose a unique number which they'll receive as a sticker with the order.

Since it's an event my client is promoting, people will meet each other wearing those unique stickers and being able to identify each other online and in person with this number.

Suddenly my clients call me that "customers are complaining about that there is something wrong"
Turned out he confirmed all orders straight away and that part of the application which makes the number unique was broken on the update.
So everyone could chose any number (also taken ones) as his "unique" number.

In my panic, I told my client "It's my mistake, I'll deal with it of course and call the affected people in my free time, since it's my mistake you don't have to pay for it". (it's my largest client by far, am a freelancer)
Realizing when people can chose any number it'll not be a few ones who have the same, it's like almost everyone did chose "69", "1", "420", "88 (a scary amount of people)",... (with 69 being the number being chosen by most people btw, even more then "1")

So now I have to call about a thousand people telling them a new random ID will be assigned to them. I thought of course about mailing them, wrote a script that deals with the issue automatically, and FUCKED IT UP TOO so everyone is confused and the only way to deal with it is by a call basically.
And while I'm sitting here now for 2 days straight calling people in my free time about their random ID will have to change, I realized that some people are quite crazy about random ID's.
I'm talking about yelling and threatening because "is it too much to ask for a working website when ordering this expensive product".

I hate my life right now and am getting quite serious about throwing all my electronic devices away and become a skilift operator instead. Fuck the higher pay, it's not worth the shit, I wanna have only responsibility about one button to press while watching people fall on their face.