All you need in this life is ignorance and confidence; then success is sure. You can "already know for sure" things that could actually impede progress. Always be on the lookout for the things you did not know, that you did not know. Secondly, work on strengthening personal belief that a particular will be achieved regardless of any adversity that may show up, or evidence to the contrary.
A wretched soul, bruised with adversity, We bid be quiet when we hear it cry. But were we burd'ned with like weight of pain, As much or more we should ourselves complain: So thou, that hast no unkind mate to grieve thee, With urging helpless patience wouldst relieve me; But if thou live to see like right bereft, This fool-begged patience in thee will be left.
Charity is that rational and constant affection which makes us sacrifice ourselves to the human race, as if we were united with it, so as to form one individual, partaking equally in its adversity and prosperity.
If you see Allah, Mighty and Magnificent, holding back this world from you, frequently trying you with adversity and tribulation, know that you hold a great status with Him. Know that He is dealing with you as He does with His Awliya’ and chosen elite, and is watching over you.
Certainly virtue is like precious odors, most fragrant when they are incensed, or crushed: for prosperity doth best discover vice, but adversity doth best discover virtue.
All I can do is to urge on you to regard friendship as the greatest thing in the world; for there is nothing which so fits in with our nature, or is so exactly what we want in prosperity or adversity.