People who steadily acquire more and wealth until they can actually describe themselves as being wealthy are, generally speaking, better able to adapt to their new financial situation than those of us who’ve suddenly acquired a bunch of money in an inheritance or whatever. If you think about it, the situation is very similar to sudden changes in your environment; if you stay in one country and slowly acclimate to the new environment as the seasons change, the change isn’t actually that disruptive; however, if you leave one country which is very hot and go to the north pole, the change can be very shocking.
Figuring out how to handle a large sum of money is a learning experience, and it can take time before you have skills you need to do it responsibly. In the interim, it could make sense to hire a financial advisor to provide advice on how to manage and invest your money, so that all of the wealth you’ve acquired isn’t squandered; so that it actually makes a substantial difference to your way of life.