I've lost quite a few; it's still unknown if any of them had any significant balance, but you get my point. I used to write them in text documents and scatter them on my computer. The majority were lost due to the poor organizational skills of that time. Don't use text documents, and if you write them on paper, don't lose them. I also recall writing on pieces of paper, which were never to be found. However, I did manage to recover a few of them, some of which were empty, and another one had a few mBTC in it. I don't know if this counts as well, but I can confidently say that I've also lost a few wallets, which I remember had some kind of balance on online wallets and services, most of which either shut down or were unable to recover my accounts.

Now that we're talking, I still haven't fully learned my lesson because I'm yet to secure my seed as safe as I'd want it to be. At least, I'm no longer using online wallets.

I never made any mistakes on losing even a single key for my wallets because I keep them offline, I wrote it on a piece of paper then hid it in a safe place.

Storing your seed online and on any devices you are using is risky. Though storing my key phrase in a piece of paper is risky as well beacause it can be damaged by fire and water or moist but that is what I used from 2017 up until now even though we are hit by super typhoons it's still safe with ziplock and a plastic container.

Probably make backups.
 
There is no best way to store seed phrases. Which method is suitable should be selected individually. A phrase written on a piece of metal should be one of the reliable storage methods.

Worst way? This is probably plain paper or storing seed phrases on a text file on your PC.


For sure, because you haven’t been in the cryptoindustry for very long.

4 years, indeed not very long, but it still quite long.

How it can be wrong? that's relate to someone else life decision, there's no good or bad.

If someone think it's better to lost the coins to make it scarce than pass it to other people, you can't argue with his decision.

You can be grateful if your parents understand with you, what if they didn't care with you and publicize if you're a Bitcoin holder to their friends? many parents want to get validation and to make them proud.

The best way of storing safely your seed is write it on steel paper after that concrete it in a place where only you knows where it is. You must have a passphrase configurated on your hard wallet, it'll help you a lot if you hard wallet is stolen.

I lost access to my Ether wallet for a long now and have tried several times to gain access to it but no way because I didn't copy my private keys correctly and the reason Is that I failed to verify the phrases after that I wrote it down, so this is a possible mistake anyone can do and boom your funds are gone forever, and you would no longer have access to your Bitcoin again, Therefore while writing your keys down somewhere and for some people that would want to write theirs down, ensure you verify the keys back to back, that is ensuring you can gain access/login to your wallet with what you have written down.

Most of the people here who posted on your thread didn't lose their seed. It's because they already knew what they would do to keep their seeds safe.
Same for me. I didn't lose any of my seed phrases. I created many accounts in different wallets (Metamask, Electrum, Keplr, Trust Wallet, Daedalus, etc.), and I never, ever lost any of my seed phrases.

I guess it's because I always keep it safe, and when I say safe, it's stored in a place where there's not only 1 lock on it but 3 locks. The only problem with that I guess is our house will catch on fire, I will be having a hard time pulling out the seed phrases but I think my seed phrases are safe (at least for me). Having another copy of that seed phrase would be helpful as well.

I haven't been unlucky enough for that misfortune yet, but I've heard the horror stories.  Folks tend to make a couple big mistakes.  For one thing, it's way too easy to tuck that piece of paper away somewhere safe and then just straight up forget where you put it.  Outta sight, outta mind ya know? Especially if you dont use that wallet too often.  Such a silly thing to do and  that's why they say to make a bunch copies to store other places - give one to your family member, maybe get a safe deposit box, or even engrave it on metal if you're super paranoid. 

Here's another dumb mistake: saving your seed phrase on a computer or your phone or something.  I know it seems convenient and all, but thats asking for trouble if you get hacked.  Then some thief could swoop in and yoink all your funds just like that! No bueno.  Gotta go old school with paper copies all over the place.

I have some Bitcoin in my blockchain wallet which were not huge back in 2016 but now it's worth a lot and I have forgotten my password and can't remember though I have tried every possible password.

I had saved the seed phrase in my laptops notepad and forgot to remove it from charging overnight and since it was in sofa the laptop along with a later of sofa was burnt and i couldn't recover the phrase till date.

Mostly because the seeds aren't stored properly is the reason why many people lost their seed or keys.
I have also lost my wallet seeds, more than one wallet all because I was not careful enough to keep them safe. But good thing was the wallets don't have much funds but they are old wallets I would have wanted to keep.
Storing seed phrase looks easy but any mistake can be costly. The moment you forget where the seeds are kept that is the end to having access to wallet.