Weekend

오늘은, 친구랑(with) 하루(day)에서, 컵케이크 만들었어요(make). 밤에서, 음악 들었어요. 그리고 온라인 게임 했어요.
내일 가족(이랑) 같이 레스토랑에 가서 먹을 거예요.


Today, me and my friend, during the day, we cooked cupcake. On the night, I listened to music and played an online game.
Tomorrow I'll eat out with my family.

~Please explain what you correct. :D

친구하고(?) --> 친구랑 (with friends)

오후에서(In the night*) --> 하루에 (during the day)

*you literally wrote in the night (as in, inside the night) because 에서 is the particle of place of action, not time of action

컵케익 --> 컵케이크 (spelling)

요리 했어요 (made food) --> 컵케이크 만들었어요 (made cupcakes)

밤에서 --> 밤에 (see above)

가족하고 같이 아웃 먹 갈 거예요(??) -->

가족 같이 레스토랑에 가서 먹을 거예요.

family | together | to restaurant | go and | will eat

^doesn't make sense, but i put the respective english translations with the words so that you can see how it works out

Weekend (주말에)

(저는 친구와 함께 오늘 오후에 or 하루 동안)오늘은, 친구하고, 오후에서 컵케익(을) 요리했어요. 밤에서, 음악(을) 듣었어요(들었어요.) 그리고 온라인 (게임을 했어요.)게임 놀었어요.
내일 가족(과)하고 같이 (밖에 나가고 밥을 먹을 거예요.)아웃 먹 갈 거예요.


Today, me and my friend, during the day, we cooked cupcake. On the night, I listened to music and played an online game.
Tomorrow I'll eat out with my family.

~Please explain what you correct. :D

** Good luck. ^_^