I use both laundry on my own and laundry shop. But I usually do my own.

Because, In my domitary, there are simple laundry facility. So it is easy to use that facility.=because in my dormitory, there are simple laundry facilities so it is  to use the equipment.

On the other hand, Using laundry shop is far from my domitary and incur some expense.
= On the other hand, going to the laundry shop is far from my dormitory and it's expensive.
So I only use laundry shop when I want to use dry-cleaning. = So I only go to the laundry shop when I want to use dry-cleaning.

Dear Kyungjin,

Hi, thank you for doing your homework anyway. It's good going to the laundry shop for busy people like you, but in here in my country, it's more affordable to do the laundry on our own because it saves time and money. Well, anyway,  thank you again and  you did a good job. Please check some corrections.

See you later

Marian