as for 1., I agree and disagree. Physically, it will never be better than now, but emotionally, the whole experience will be better once you mature emotionally.
7. is probably the wisest item on the list. Understanding yourself, your limits, where you can push yourself productively and where you can't will pay back enormous dividends as you grow older, both in your financial, professional, and personal/emotional projects.
In general, though, I would distrust people who say childhood is for being social. Young people tend to be jerks because they haven't learned better yet. Also, when you are young, you have less choice about who you do and do not associate with. I think correctly choosing your peers is the most important part of a satisfying social life. Choose people who value the person you want to be.
7. is probably the wisest item on the list. Understanding yourself, your limits, where you can push yourself productively and where you can't will pay back enormous dividends as you grow older, both in your financial, professional, and personal/emotional projects.
In general, though, I would distrust people who say childhood is for being social. Young people tend to be jerks because they haven't learned better yet. Also, when you are young, you have less choice about who you do and do not associate with. I think correctly choosing your peers is the most important part of a satisfying social life. Choose people who value the person you want to be.