1st English writing

I'm helping my parents' business so I'm managing a billiard hall on behalf of my parents. I'm a boss. Every day I set billiard tables for games and whenever game is over, I clean tables, cues and balls. Also I help to change cuetips for free for my regular customers whenever they want.
At the very beginning of managing the billiard hall, I used to spend a lot of time cleaning billiard supplies since they were not familiar to me. As time went by, I got used to it and I'm done in 30 minutes.

I'm helping my parents' business. So I'm managing a billiard hall on behalf of my parents. I'm a boss. Every day, I set the billiard tables for the gamers. Whenever the game is over, I fix the tables, cues, and balls. Also, I help to change cue tips for free for my regular customers whenever they want.
At the very beginning of When I was just starting managing the billiard hall, I used to spend a lot of time cleaning the billiard supplies equipments since they were not familiar to me. As time went by, I got used to it and I'm done in 30 minutes.

 

Note: Good morning, Miss Jane! You did well making your composition. However, I made some corrections to correct some misused words. But all in all, you did great!