Please help me to correct my sentences
When I was ten, my sisters and I accompanied our father to the bus station, he is was going to go to Jakarta, back to his work job after having had one week off. As usual he always gave us money to buy some the snacks that we wanted. As always, Elly, my first [eldest?] sister bring had the money, it's it was Rp. 100.000,-.
After that When we were walking to the market to buy some the snacks, suddenly my sisters told me that the money had was lost. Of course, that sounds make me shocked me and I didn't believe that it because I knew that my sisters always bullied and lied me and lying to me. Then they asked me to check their pockets if I didn't believe them. Finally, they are alright I agreed the money had been lost, but one week later they told me that the money had not been lost, my second sister saves had put it in her underwear.
"Oh my god!!! Why you do this to me?" I yelled. me, Without saying sorry they are laughing at me but I will try to let it bygones be bygones.