TIFU by trying to replace kitchen faucet without instructions

Backstory: My mom bought a house that has a traditional interior. When we moved in about 3 years ago, we had to change a lot of appliances because some are already within their maximum lifespan. However, some appliances, although old, are still functioning, so we didn't bother upgrading them.

A couple of months ago, our kitchen faucet started dripping, but it wasn't bad, so we just ignored it. Sometimes I put a bowl to catch the dripping overnight and in the morning, I poured the water into our water filter, making it drinkable instead of being wasted. However, a week ago, it was getting worse. My bowl turned into a pitcher. We decided that it was time to upgrade our faucet. I took it upon myself to replace the faucet. I replaced our garbage disposal as well as installed a bidet by myself before, so I think replacing a faucet shouldn't be too difficult. Oh, how wrong I was.

When the new faucet came, I started getting cocky, and without making sure I got all the right requirements, I started working on it.

Screw-up #1: When I tried to shut off the sink cold water valve, due to the rust, the stem broke. I just accidentally decapitated the sink valve! No big deal, I can just shut off the water from the main source, but after half an hour of searching for it, I still couldn't find it.

Screw-up #2: I disregarded my quest to find the main valve and just started dismantling the old faucet. I thought that I can perform a shortcut by handling a little water leak and switching the hose very quickly. However, I was not prepared for the amount of water that comes out of the valve. I severely underestimated it. When it was disconnected, the water came out like a geyser!

Screw up #3: Still trying to resolve my determination to pursue my shortcut, I still try to connect the new faucet to the now raging hydro pumping hose, but NOPE! I just realized that the new faucet came fixed with a 3/8 female hose and my valve is a 5/8 female hose. Not only it's the wrong size, but both are also female, and they definitely do not connect.

Pure, unadulterated terror washed over me as I tried to mitigate the damage by any means necessary. Bucket, filled to the brim in 10 seconds. Trash can, filled to half, when I suddenly have a brilliant idea. I dismantle the garbage disposal pipe that connects to the sink pipe and sticks the hose into it deep. Finally, water smoothly goes into the sink pipe without any issues, and the house is no longer flooding. However, I still have to continue my main quest, to find the main water valve.

After about half an hour of destroying my basement, I found that the main water valve was hidden behind one of my mom's cabinets. I quickly shut off the valve and when I no longer hear water running, my terror was replaced by an immediate relief. The silence sounds like an angelic choir. I went back to the kitchen, realized that the new faucet's hoses are too short, had to buy some hose extensions, realized that I bought the wrong kind, goes back to replace the purchase, and finally, the job was done.

I even had a little PTSD when turning on the water valve, even though I trust that my work is perfect.

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TL;DR: Tried to take a shortcut to replace my kitchen faucet, which only resulted in the anger of Poseidon all over my kitchen.

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Update:

Screw up #4: I just found this out very recently. During the whole chaos, I had to shut off the hot water valve alongside other valves I didn't even know were connected to the hot water tank. Turns out that I accidentally killed the burner and I can't get the burner to light up. Guess showering with cold water tonight is my punishment for being stupid...