I have a requirement to sort and filter on a roll-up, the value of the amount of all 'Closed-Won' opportunities where the opportunity was created in the last 365 days. This needs to show on the Account Object.

Ive created a rollup summary field on the Account Object which is set as - Roll-Up Summary (SUM Sales Opportunity) and also created a Formula Checkbox on the Opportunity Object which is set as NOW() - CreatedDate < 365. I was hoping to be able to filter the roll up summary on on the Account Object by the Formula Checkbox and Opp Stage of Closed-Won but its not possible to reference the Formula field.  Im now a little stuck on how to achieve this, any ideas on another way? Thanks.