Hello, could anyone correct any mistakes? I’m trying to practice writing in Korean. Thank you! 토요일에서 친구하고 놀고 싶어요. 그렇지만 여기에 코로나19는 많이 있어서 저는 친구하고 놀 수 없어요. 그래서 저는 토요일에 집에 있을 거예요. 그리고 케이크를 만들어 볼 거예요. 후식 좋아하는데 살을 빼고 싶어요. 저는 운동해 봤어요. 하지만 정말 힘들어요. 그래서 그냥 건강식을 먹어 볼 거예요.

Does this introduction sound natural? Hello! I wrote my introduction in Korean but I'm not sure if it sounds natural. I repeat "저는" multiple times and I'm not sure if I should drop it after saying it once since I've noticed the subject is often dropped in Korean. 아녕하세요, 저는 에밀리입니다. 저는 미국사람입니다. 저는 한국어를 공부하고 있습니다. 열심히 일하겠습니다. 감사합니다.

How do you say this in Korean? How can I say, "I will work hard!" in polite/formal Korean. 감사합니다!

How can I say this in Korean? "I speak very little Korean, I'm still learning" Or something similar that will mean the same thing. :) it's just that I'm going to the market tomorrow, and sometimes even if I just ask something simple they will speak a lot haha and I don't understand it. Also I'm really embarrassed about speaking Korean to native speakers, even though my tutor says I don't really have an accent at all when I speak it. :c But still, does any one have any tips? I'm scared even to just say hi or thank you.

Is this sentence in Korean correct? Please help! So my homework is to do 6 sentences saying I read (something) in (somewhere). But I need a lot of help with it because I'm not sure if I am writing it correctly. I am trying to say, "I am reading a magazine in the library" but more accurately saying "I am reading magazine in library" in very polite formal korean. 나는 도서관에서 잡지가 읽습니다. I'm not sure if I'm supposed to say "잡지가" or "잡지를". I get confused with those marking particles and I am also not sure if I should be saying 나는 or 저는. Please help!