Trying to Save up to cover costs of funeral

I basically grep up in foster care from the ages of 10 and 16. I never had a relationship with any of other family members except for my late father. Unfortunately he was addicted to drugs and he's health was poorly. I tried to support him as much as I could. I loved him so much regardless of the fact that he was not present in my life. I felt like I needed to protect him. I do not have any other family members that I can trust and ask for support. I have tried to reach out to my mother and sister, however they have mental health issues and are not able to make any positive input. I feel so alone, I am a single parent with two children. I work part time shifts. I am now having to pay all my fathers funeral costs ect.. I was he's next of kin so it's all on me. I would be happy to raise even 5% of this request every little helps. Thank you so much. I have never done this before and I appreciate the possibility of reaching for help. It's nice to in know I am alone in this world.