Courage is required to make an initial thrust toward one's coveted goal, but even greater courage is called for when one stumbles and must make a second effort to achieve. Have the determination to make the effort, the single-mindedne ss to work toward a worthy goal, and the courage not only to face the challenges that inevitably come but also to make a second effort, should such be required.
(Because) the notion of absolute truth is difficult to sustain outside the context of religion, ethical conduct is not something we engage in because it is somehow right in itself but because, like ourselves, all others desire to be happy and to avoid suffering. Given that this is a natural disposition, shared by all, it follows that each individual has a right to pursue this goal. Accordingly, I suggest that one of the things which determines whether an act is ethical or not is its effect on others' experience or expectation of happiness.
Do ask yourself why you, the individual, exist, and if you can get no other answer try for once to justify the meaning of your existence as it were a posteriori by setting before yourself an aim, a goal, a 'to this end', an exalted and noble 'to this end'.
My parents were my first bosses - they gave me my moral compass, goals, and first recognition. My dad worked 25 years for Rolls Royce in England. He taught me the value of working someplace where you can make a difference - not chasing money but doing work that you found purposeful.