We are all familiar with the phrase 'Nothing is impossible, everything is possible'. The world is full of people who have managed to make the impossible possible through sheer faith and determination. A cricket match in India inspired me to this sentence, where a boy played cricket despite having no hands.
https://www.facebook.com/Swornotara/videos/1379543366078545/?mibextid=rS40aB7S9Ucbxw6v We all know that hands are the most important part of physical fitness to play cricket. But his morale filled this imperfection.
With hardwork and determination, one can achieve many things that seem impossible. And there are many stories of people who never allowed their circumstances to determine their condition. There are stories of many slaves who worked hard, became free, and contributed to the development of their neighborhood. An example is George Washington Carver who was born at a time when Blacks were not allowed to attend school in the US. But with an uncommon desire to learn this former black slave became a professor and discovered about 300 ways peanuts can be used. He had to go through so many hard times that would have made him become discouraged but he kept putting more effort to overcome them all. We should try as much as possible to avoid excuses because like OP said nothing is impossible. It is better to try and fail than not to try at all.