Am I paying too much for my monthly chatgpt subscription?

So, i joined chatgpt like a year ago… not sure exactly. I think it was just 4 at the time where 4 was limited and 3.5 was unlimited. But, I really liked 4 better and I was trying to figure out how to get more 4 usage, so I ended up signing up for an enterprise account. But, with the enterprise account, I’m required to pay $30 a seat and I’m required to have 2 seats. It gave me more usage. But as time has gone on, I don’t know what it’s getting me more now. It probably is giving me more usage still of o1 and 4.5. 4o still usually gives me the info I want. But, for one, I’m not sure how to downgrade from business to a personal account. It sounds like chatgpt can only ever have one account per email address per lifetime. But, I was going to try to cancel my account, let it expire and see if it would allow me to sign back up as a personal account. But, last thing I need to do is downgrade, get extremely limited on how much I can use chatgpt and then have to redo the business account or do the 200 a month plan. I don’t want to lose my chatgpt chats. I like them for history notes.