Want to make sure I can buy a new creative cloud pro plan

I purchased a creative cloud subscription last year, and it's about to run out. It was also a student account and I have graduated in the time since I bought it. Rather than add new payment info to pay monthly, I would like to purchase a new yearly subscription. The adobe store will not allow me to make the purchase because I already have a plan. In my account into it is not giving me the option to change my plan, I only have the option to cancel it. Would it be best to cancel my current plan and buy a new one, and would I be able to do it with the same email?