If you tried before and failed, try again. Life’s hellish enough for quitters, who, having their hopes dashed often, are stilled by the harshness of not being prepared enough.
Of course, there were throes you never envisaged. And often, you felt like running away. Of course, some commitments got broken and made you ask yourself why you started in the first place.
But all of that is in the past, as of this moment, and your dream can be as real as you want it to be. You’ve got to try again, wiser, better and with freshly-gained experience. If you tried before and failed, please try again.