Ah ok, now I understand what you meant. So here's the complete sentence : 점심을 먹는 데 너무 시간을 낭비해서 청소할시간 전에 집에 안돌아올거예요. I added "청소할시간 전에" and edited, "안돌아올거예요" (meaning here, "won't return")

It looks pretty good. Below, as you already know, the words in parenthesis are optional. 영화를 보는 대신(에)책을 읽을 걸 그랬어요. 공부하는 대신(에) 게임(들)을 하는 데 다 시간을 낭비했어요. And below, "했서" is the past tense, but I think the present tense is what is appropriate here : ...시간을 낭비해서... ...시간을 낭비했기 때문에... (also a present state, "here you are in the present having wasted time on playing games...") Unfortunately, I do not understand your question regarding "위에". Perhaps you can clarify a bit.