For me, the word "success" has a very vague meaning. It is a relative concept. For example, an ordinary worker at a factory gets promoted and becomes the head of the workshop - he is successful, but in comparison with the scientist who invented the vaccine against a deadly disease, he can hardly be called successful. In the modern world, when applying for a job, one can often find the item “Ability to work in a team” on a resume. This means that large companies often claims that being part of something larger makes one more successful. In the history of many companies one can find such words as “There were two of them, and they started their business in their father’s old garage” or “Two brothers created a company”. Such stories show that great things are done together. For example, team successes include such great giants as Google founded by two friends Sergey Brin and Larry Page, or Apple founded by Steve Jobs, Steve Wozniak and Ronald Wayne. Such examples show how important it is to find a partner who will work for a joint project. Success is something indescribable. It can often be confused with luck or self-deception, but the most important thing is to decide how you will achieve your goals, alone or with someone else This is very well written, but it is not perfect. Some of your word choices convey what you intend to convey but in English we would usually use a different word. "Accomplice" is often used to describe two people committing a crime. The word is not necessarily wrong and your meaning is clear, but this is not a word for typical English usage. A partner or partners would probably be a better word. I am learning French and wish I could write this well in French. Overall this is very good.

Thank you !)

This is actually very well written. I don't know that I would change anything. Being that this is an opinion, I feel that this is perfect.