You're not going to be different ... you're going to be the same as you've always been; with doubts, everlasting dissatisfaction with yourself, vain efforts to amend, and falls, and everlasting expectation, of a happiness which you won't get, and which isn't possible for you.
William James once made an acute point about the relationship between happiness and expectation. He argued that satisfaction with ourselves does not require us to succeed in every endeavour. We are not always humiliated by failing; we are humiliated only if we first invest our pride and sense of worth in a given achievement and then do not reach it.