If you wanna say you drink tea everyday, you can also say I have tea everyday Depends on when and where you are using it

It was helpful/It was a great help

Wonder you are trying to describe a situation where something you like to happen. Interest is the word commonly used when there is something you need to answer precisely and done more frequently from you end.

Example You asked a questions that's why I am answering it

Ya it may be considered as same but may differ as per the usage. Mainly as though is rarely used and as if is the most common thing that is considered. As you are describing about a single person (He) you should use was instead of were which is used when describing more than one person.

Ur wish

read news paper and listen to the news