If you have a great desire system in place, either you succeed in achieving your goal or you did not. If you did not succeed, you will become depressed and suffer. But if you achieved your goals easily, then you would become bored after a short time. It is just Human Nature. Are you bored a lot of the time? That is also suffering. But understand that boredom is a taught feeling society created. Do you see any animals that are “bored?” You are told to be mentally, or at least, physically active the whole day, so that you are “productive” continuously. Therefore, when you stop doing, you feel as if something is wrong, that you should start something (to avoid the truth of Being).
As Wayne Dyer once wrote, we are Human “Beings”, not Human “Doings”. But if you stop to meditate, pray, or contemplete, which means not to identify yourself with any doing, and you “do it” properly, you will find a joy which no action can achieve on its own, and boredom will disappear. Many call this mindfulness.
There was a story. Alexander the Great, when he was in India he visited an Indian guru. The Indian master asked him, if you were stuck thirsty in a desert, and I had a bottle of water, and there was no other water anywhere to be found, would you buy it from me if I asked for half your empire? Alexander the Great responded, “Yes, in that case I would give you half my empire.”. The Indian Guru responded then, I would not sell it to you for half your empire, I would demand all of your empire, because in a little while, you would become even more thirsty. Then Alexander the Great responded well then, yes, perhaps I would give you all of my empire. The Indian Guru then laughed, then why are you wasting all your life getting great assets for a bottle of water? To which Alexander the Great responded that he was humbled.
Cease striving, just be comfortable in your own skin. If you strive and miss, you will suffer, if you succeed and hit the mark, your temporary win will soon turn into a losing battle known as boredom. That is why you often read about millionaires depressed or killing themselves. Once they are wealthy, all their challenges disappear, and they are left all alone to do nothing.