Help me save my mom

Last year was a very difficult year for my family. My mom started to feel very sick. She started to complain about bone pain. My uncle died on 3 december 2021 and my mom couldnt be with him because the pain numbed her body. In 21 of December the doctor performed a scanner on her. The next day i got the terrible answer: bone metastasis. She did some ultrasound and it resulted that the primary cancer was breast cancer. I was devastated. But this was not enough. The last 2 weeks she has difficulty breathing. Covid! She has taken injections the past 10 days and for 5 days she is using an oxygen device at home. In the 15 of february we have to go to the capital city of Albania, Tirana for more exams. But everything costs. Even the oxygen that she is taking right now. I wasnt able to return to my work place because of my mom disease. I can not leave her alone, especially because i have 2 children to take care of: 7 years and 1 year. I am desperate. I lost my dad 17 years ago because of stomach cancer. I dont want to lose my mom also, at least not so early.