Please help me correct these sentence driving me nuts?

Could you please help me with these sentences by correcting them?

1 He will no longer be my concern/be of concern to me.

2 I'll be working less toward the end of the month.

3 I was thinking back to the day I won the match.

4 I don't want to die knowing that I left my family with nothing but debt.

5 She came home early only to find her husband with another woman. So she went out and did the same to get even.

6 The baby cry is her excuse not to go out.

7 He'd have the easiest time finding a girlfriend out of all my friends.

8 He's scared not to be the favorite teacher among his colleagues.

9 Some of the numbers are easier to punch in than others. None of the numbers in the column are equal/are the same. All the columns have to add up to 100.

10 Depending/according to the tips you get, you get a salary./you're salary is fixed.

Thank you