Do not make yourself too busy of making money, you said that is a big amount of money and I think you can enjoy that amount of the rest of your life. You just have to travel all around the world maybe, investment is only good for people who are not satisfied with the amount of money they are making.
No matter how much money someone has but earning more money would be needed as money gets finished someday and then you will need money again so it is better to keep your investments active no matter if you have 100 million $ or what.