Korrektur sehr wichtig

Zitat:
(1) If he had not been too proud and would have (1) accepted the job offer by his friend (2) he would have earned more money and (3) probably be happier.

(2) If he would have (4) focused on his on (5) life and not always thinking (6) about the past (2) he would be more satisfied .
(3) Moreover, he should have been more statisfied (7) with smaller things.
(4) he should have accepted the dreams and wishes of his sons even if
it does not answer (8) to (9) his expectations.
-> probably the father son relationship would have been better

He should have changed his views and should be satisfied and pleased with smaller things.
Furthermore, you should not always aspire after money (streben nach) because a rich man can be just as sad, lonely and dissatisfied as a small (10) man.
Money is not the only thing that makes you happy.