Final answer:
The advice is to learn from all days: good days bring experience, worst days teach lessons, and best days create memories.
Step-by-step explanation:
The advice given in the statement 'Never regret a day in your life, good days give experience, worst days give lessons and best days give memories' is to Learn from all types of days. This means you should view every day as an opportunity for personal growth. Good days provide us with experience, which can enhance our skills and understanding. Days that we perceive as 'worst' days are actually valuable because they provide us with lessons; they test our resilience and help us to learn how to navigate challenges. And, of course, the best days leave us with cherished memories that enrich our lives. Rather than regretting any part of our lives, we should embrace each day as a unique piece of our journey.