It always seems impossible until its done.When you set a goal, it always feels like it is tough and just impossible to achieve. But once you've started on it, it would feel easier.
The more we think about how hard or impossible our task is the more it becomes tough. But when we just start doing it, it feels easier and it seems like we would accomplish our task in time.
Therefore we should stop thinking about the task instead concentrate on working on it. Sometimes it happens that it may look hard but actually, it is not.