Hi fen viik faasiil!  would be my version of the sentence.  lit. "You will defeat your fear".

Usually there's always a way to rephrase a sentence without the offending word that doesn't have a translation. 

Try to write words that mean similar things to what you want in the Translator, you just may find what you're looking for. 

There is a way for "can":

I can stand - I have strength to stand-- Zu'u piraak mul wah kriist

The word "aal" might be useful for your purposes if you want another option. It means "might" and has connotations of uncertainty. If that's what you're going for, "aal" could possibly fit better.