TIFU by donating my blood

I have been donating blood couple of times. But today im so embarrassed. For the people who regularly donates blood or have been donating, you may know how the process are.

The process goes very well, with medical check, blood pressure and so on. It's just like a normal day for me, nothing wrong and all goes well.

Usually, after the nurse draw your blood, the nurse will give advice to not use your hand that you got your blood drawn on, for heavy task or it may complicates the healing of the wound or some sort. And i nodded and said yes as to acknowledge her advice.

And then, after all is done, i go out to my car, (fyi my car door handle is a bit hard to open, and i got my father to drive). With my smooth a*s brain, i open the car door with the hand that got blood drawn from.

At first, there nothing wrong with it, i got inside the car, get seatbelt on. Then, my father drive out the parking lot, and i start chit chat with my father. Then i feel something wet on my trousers. And i saw it completely wet with my blood, with my arm dripping blood on to it.

Then, i screamed to my father, "look my arm". My father told to put pressure on it, while, he trying to go back to the blood donation center. Not long after that, we arrive again at the center.

With blood dripping arm and blood stained trousers and part of my shirt, I look like someone running off from a murder. I go to the counter and ask for help, many people were there saw me. I dont know what they thought about me, I'm so embarrassed.

Luckilly, the nurse took quick action, and told to go to one of the rooms to manage my situation. The treatment went well, and i got the new band-aid on and cleaned, not my trousers and shirt thou.

TL;DR I fuckup by not follow nurse advice after donating blood, and got shower of blood all over my body.

p/s i dont know if this good storytelling or not, i'm so sorry if there misspelled mispronunciation or grammar error as im still learning english.