Many people believe that goals are a good thing. I believe that they are an absolute essential. You know, I wonder about people who have no goals. It isn't just because they aren't going to enjoy much success in their lives. It's because they may not have much of a life, period!
Humans are teleological beings. In other words, we think in terms of purpose and we are naturally goal-oriented. A teleological nature means that it is absolutely critical for us to have goals. For us to change and grow, we need something tugging at us from the future, something to, quite literally, look forward to.
When you give up on your goals or when you have no goals at all, your whole system slows down and eventually shuts down. You become depressed and sluggish, and you may very well become seriously ill.
Prisoners of war have been known to simply curl up and die when their hopes for the future died. Who knows how many suicides or terminal illnesses have been directly or indirectly caused by lack of goals? So having goals, I believe, is absolutely essential to our existence.
Keep in mind, too, that we move toward and become like that which we think about. So, if you don't deliberately think about how you want your life to be, you'll just repeat the past or the present over and over again, with minor variations. You'll end up, at best, in a rut. Once you have a clear picture of where you want to go, your teleological nature will take over and help guide you to your goal.