The key to being able to let go of all the stuff you're holding on to is knowing that you'll be okay if you don't have it. And that's the truth. You can survive with very little. And though the passing of people and things can be painful, you will survive.
Every moment has infinite potential. Every new moment contains for you possibilities that you can't possibly imagine. Every day is a blank page that you could fill with the most beautiful drawings.
The problem for a lot of people is that they don't really know what they want. They have vague desire: to 'do something creative' or to earn more money or 'to be free', but they can't really pin down what it is precisely that they want. So they drift from one thing to another, enjoying some moments and hating others, but never really finding fulfillment or success. (..) This is why it's hard to lead a successful life (whatever that means to you) when you don't know what you want.
To lead a successful life, then, it's a good idea to work out what you really want. Then get together some plans. Then set some goals.