First notebook entry: Introducing myself

I am learning English (you don't need a comma there) because I (always capitalize "I" when referring to yourself) want to earn a PhD in the US. (one of the annoying things about English and a lot of languages like it is having to add articles--the/a/an--to most words haha. Also, I know you meant to say "do" instead of "so", but "do" isn't always the best verb when writing about a PhD...usually you "earn" or "receive" or "study to get" one. "Do" for something like a PhD is used more frequently in really casual spoken conversations.) I really hate to learn new languages, (here, you actually do put a comma, since you're about to discuss the reason with "but...") but it is ("it" referring to the learning of new languages, which you hate...and I'm sorry to hear that :( )the only way to study abroad properly. (You don't need the word "properly" specifically--you could even use "effectively", "efficiently", or other words like that. Words like these are optional, but when you just say "it is the only way to study abroad", it sounds like you're saying that, unless you learn a language, it is impossible to study abroad, and that's not always true. I have a bunch of friends who studied in Italy and Spain and never had to learn a single word besides "hello" and "thank you." However, since learning the language enhances the experience of studying abroad, I would add a word like "properly" to emphasize how much more beneficial studying abroad becomes after learning a language. That's just me being nitpicky, though lol) My native language is Greek, (you put a comma here since you have another thing you're describing about yourself marked by "and I") and I grew up in Greece. I enjoy studying and traveling in other countries. (You could also say "I like to study and travel in other countries," but when you use enjoy, you enjoy the progressive action of a verb, so you write the "-ing" version of the verb, but using "like" or "love", you can say "to [verb]" or "[verb]ing". 

So in all, it would look like this:

I am learning English because I want to earn a PhD in the US. I really hate to learn new languages, but it is the only way to study abroad properly. My native language is Greek, and I grew up in Greece. I enjoy studying and traveling in other countries.

Let me know if you have any questions! You already seem to know English pretty well, and I think you'll have no problem getting your PhD out here!