Please help me save our mother from breast cancer (stage 3)

Dear people. My name is Krystal of San Pedro, Laguna, and I desperately need all the help I can get for my mom. She has stage 3 breast cancer and is currently having chemotherapy. As I write this, she's already through with her 5th session. She has three more to go and that is when our problem will escalate because the 5th session is already costly and so are the three remaining sessions.

We were able to afford the 1st to 5th chemo sessions mainly through donations from friends and family members. But our savings are already depleted. Each remaining session will cost us P60,000 ($1,249.03). That means that we will be needing P180,000 ($3,747.11). And after all the chemo sessions, radiotherapy will follow which will cost us another P140,000 ($2,914.41). That means we need to raise a total of P320,000 ($6,661.52), and this doesn't even count her medicine and other maintenance supplements that she needs to take for the next five years.

My dad is the only one working. He earns just enough for us because there are five children in our family and all of us go to school, and we only rent our place. We are practically a poor family. I know that this is not the right time to ask for financial aid because of the pandemic. Everyone is tight about money, but we are desperate to save my mom's life. We want to avoid it from advancing to stage 4 and to spread to her other organs like what cancers cells often do. She wants to survive not for herself but for us her family. Please.