how important is ?

Well if you want to be a pilot but cant afford the training than your dream wont be as easy to achieve. But if you had millions then you could. But the millionaire would not want it as much as the poor want does nor would he have the same amount of joy if he succeeded. Money is important.

I think it depends on what you want. If it is to be happier forget it. Money will not bring you happiness. If you are aiming to say provide granny with a room close by so she can be looked after but not in house then money is needed. I would like both, simple pleasures and money to open up new doors.

No, I don't think so. Being rich is only one of the ways to be succeed in reaching our aims. If you want to be succeed, you have to do your best. I think some of the keys to be succeed are: keep trying never give up (just do trial and error), having broad connection (to help you getting your aims or just for giving some suggestions), confident (it is the most important thing should you have, I think, cos without having any confident you will do it in hesitant that it will be gotten and your negative thinking will give you bad effect for you).