Noob

Explanation:
Pro means you are experienced at doing something, and Noob means you are very new to something or inexperienced at something.

Example:

1. He ended up sending out the wrong information to the clients. He's such a noob.
2. Four years ago, I made a film. It was terrible, I was such a noob.
3. I wasn't a noob, I've been playing it for years.

Diary:
Yesterday I ate the supper cooked by my dear Mum, it's so tasty and I'm really excited to enjoy it. Yesterday I read the drawing book of principles, I have not read the original one, and it's fast for me to finish it within 1 hour while watching TV. If I can summarize my principles differ from Ray Dalio, that would be:

1. Always learn, from a book, from a person, from yourself.
2. Each challenge or difficulties are all the turning point for us to make a great progress.
3. Always consider who you are and what you want and strive for it.
4. Be grateful and be brave and be sincere, they are all our great merits and weapon to survive.