Sometimes, creating too many emails can make you get confused when you don't have access to the book that you wrote the passwords if you are away from home. We are in the same shoes, I have a specific email for gambling and use that email to register in any casino that I want to gamble in. I have a separate email for exchange and so on. The important thing is that I only keep funds that I can afford to lose with a third party.
I see no point creating multiple emails when you can make use of two probably the other must not be exposed, in terms of written passwords you can still save them although someone insisted I make use of password manager app so I don’t have to bother about having password issue yet I still don’t trust the process. The easy solution is having few emails so you can be able to differentiate them when encountering any difficulties, memorizing this can be difficult no doubt definitely people still prefer google manager.
There is a point in creating multiple emails for different purposes. We have friends, business, jobs, gambling, subscribe to events, sports, or else. If you only have two emails and you split it among those purposes, you will see your email will be full of those things. I guess you will directly remove those emails

But I accept it if you say like that because we know what suit us. We also know how to use email better than others.
When a person uses multiple platforms, it is better to use different emails because when we register on different casino sites, their different email marketing mail files help us lose our important emails. And many times we get bored and delete the entire inbox and from there we lose our important emails. I never use my personal email address on any gambling platform or any platform from which emails can come frequently. I always use multiple emails for different sectors. This always helps to stay clear in terms of receiving all types of emails.