Is this too much or not bad? I plan to keep my recovery keys in four separate locations, a brand new flash memory from Huawei, a brand new WD External hard drive, my book with a strong cover and my wardrobe, in my wardrobe you can't easily see it because its always dark in there, I use my torchlight to carve those words in there and its even written on the top inside the wardrobe, I tend to keep it this way for now till I can get a Nano X.
Storing recovery keys in several places at once, along with the positive side effect of increasing the likelihood that someone else will find your storage. If there are 4 such places, then the level of threat should go off scale. flash memory - a very unreliable method of storage in view of the fact that it tends to fail unpredictably at the most inopportune moment. Worse, it is impossible to recover data from it.
hard drive - is quite a good option if you don't connect it to an infected PC and store it so as not to expose it to moisture and other atmospheric phenomena that can lead to breakdowns. Also a small bonus is that if hdd still fails, then there are good chances to recover data from it.
my book with a strong cove - do you just keep recovery keys in clear text here? Too reckless. Anyone can see it, and also, paper is also a very unreliable material, vulnerable to external influences. Such as fire, water, solvents, etc.
wardrobe - it's something unique. I will include this in my personal top of the most amazing places to store key
.Let me recommend you an excellent article about one of the ways to store seeds:
Securing Your Seed Phrase with Washers). This is one way that should prompt you to consider using metal (plate, washers, kernel - any form) to store keys. Metal is devoid of all the shortcomings of "book with a strong cove" and of course "wardrobe"
.