Hi,
Was in a similar situation to you this results day. Was predicted A*AA and somehow churned out BCD (getting b remarked). I was also stressed, overwhelmed and emotionally run to the ground.
My advice would be to spend this year retaking your a levels to a higher standard and get a decent mental health break too. Don’t stress yourself out too much but I think if you work well this year you’ll be in a much better place next year. PM me if you need anything : ).