Dont ever believe you cant do it or are'nt good enough.
There are always people who will try to dissuade you from your dreams because they dont want to see you doing well,for jealously wreaks havoc wherever it goes and to whom its directed at,and to those of us with a sensitive nature can be brow beaten into submission,but dont allow it,for you are so much better than any detractors,you are better than them that live in a tiny shallow little world where the sun never shines.
Challenges,persistence,perseverance and effort will never be wasted.
Trust your abilities ,and if you stumble and fall at the first or second hurdle ,you will stand up again with dogged determination to do better in the next round.
I know what its like to bear the brunt of bullying and unsubstantiated gossip,even from a very young age,and it is sheer evil.But those same people will one day regret their bitterness,jealousy and spite,maybe not today,but in all those days ahead.
Remove those types from your circle,you dont need them and you've never needed them for you have more to offer than they ever will.
Kindness and decency succeeds where ill words fail,and never forget that those who talk about others with spite, will also have talked about you in the same vein.