I would probably have to disagree because we learn from what happened yesterday, and we will continue to grow tomorrow. We should of course stay in the present and be mindful but it doesn't mean it is more important. They are all equal imo. We learn from our mistakes, even if it is just from yesterday, and if we already made them today, then tomorrow will be an opportunity to start afresh. I don't know this is probably wrong :(
I agree with you, every day is important and every day brings a new hope inside and every day gives us the chance to do something new , great and amazing.