1.) It is easy to understand what you are trying to say, but it sounds a bit unnatural. I would say, "Keep this to yourself and don't tell anyone." "Keep this news to yourself." "Don't tell anyone." 2.) "Put off", "postpone", and "delay" all have very similar meanings. "Put off" is mostly used in casual settings and suggests procrastination. This means, for example, instead of doing your work, you could "put it off" by saying you will do it later. "Postpone" is usually used when talking about future events that have been officially "put off". Take for instance, your friend says "The football game has been postponed." This means that the game will still happen, but instead of the game occurring on its original date, it will happen another day. If the game occurs just a few hours later, then "delay" becomes a better word to use. "Delay" is usually used when something is moving slower or going to happen later than planned. Imagine you're at an airport and you hear "Due to weather conditions, flight 247 will experience a slight delay." This means that the flight will still take off, it will just be at 12:00 instead of 11:00. Sometimes these words can be used interchangeably, but in certain cases some words sound better than others. In my opinion, I would use them as: put off = procrastinate, to not get work done postpone = happens later than planned, on another day, week, etc. delay = happens later than planned, but on the same day 3.) My advice would be to choose your path based on your passions and what you love! Hope this helped! (: (:

We would not generally say "keep that news to yourself." We would probably say simply, "Keep that to yourself. Don't tell anyone." Also, "put off", "postpone", and "delay" are used interchangeably. They mean the same thing.

News is singular so it should be "that news". And "to" yourself is correct. "For" could be used/okay too but "to" is probably the better/more used option. The second phrase you wrote for #1 is correct if you change "those" to "that". Good job :)