You need a secure custom diary
Many people have the habit of keeping a diary. A diary is like a thing for us to keep our lives and secrets. Much privacy is recorded in the journal, so we don't easily take it out and show it to others. Usually, we will also place it in a more hidden location to not be easily found by others.
Of course, we can also use the diary-like safe - choose a diary with a lock.
This is a good idea. A diary with a lock tells someone that "what's in here is important" and that "I don't want you to look in it." The little safety is like a security guard, protecting your secrets 24/7.
Again, the locks on these journals make a difference. If you're worried you'll lose the key or forget where it is, you can choose to use a combination lock. If you find it a chore to rotate each combination number, you can also select a lock with a key. Of course, they have their drawbacks, others can guess the combination, and you can lose the key - and you end up not being able to open your diary yourself.
Choosing a diary with a lock and your name on it is a good choice.