Go on bravely. Do not expect success in a day or a year. Always hold on to the highest. Be steady. Avoid jealousy and selfishness. Be obedient and eternally faithful to the cause of truth, humanity, and your country, and you will move the world.
Each of the professions means a prejudice. The necessity for a career forces every one to take sides. We live in the age of the overworked, and the under-educated; the age in which people are so industrious that they become absolutely stupid.
Mistakes are a part of being human. Appreciate your mistakes for what they are: precious life lessons that can only be learned the hard way. Unless it's a fatal mistake, which, at least, others can learn from.