If I have the belief that I can do it, I shall surely acquire the capacity to do it even if I may not have it at the beginning.
Gandhi
If you are confident enough to start something you may achieve it!
Think about it like this: When you were young you told your partens for example ‘I want to play soccer.’ They did not tell you that you can’t do that because you never have or because you don’t have the skills. They encouraged you, you started plaxing and eventually became a good soccer player.
So how did that work? I’ll tell you how: You commited to what you wanted to do and became good ad it!
Problem is: While your parents supported you, most other people won’t. Not because they don’t like you but rather because a) They don’t want other people to be more successfull or b) they genuinely don’t believe that it is possible to do what you want to do.
So don’t be discouraged, decide what you want to achieve and go for it!
/phil