In this infinite universe, possibilities are infinite. You just need to recognise them and believe in yourself. If you think you can and if you think you cannot ,you are right in both ways.
Have faith in yourself and take the first step ,start by doing what is possible for you and suddenly you will be doing the impossible. Never loose hope ,never get discouraged by defeats ,because nothing worthwhile in life comes without struggle, obstacles are in your mind ,and people who overcome those obstacles are more secure than those who have never faced them. Everyone faces disappointments, but those win who don’t get disheartened.
A smooth sea never made a skillfull mariner. Whenever you fall down in life ,just bounce back.