Money for Phone for projects

I uses to have a phone and Its been the thing i used for my projects like our Science Investigatory projects it helped me my preswntations words files and a lot for searching up things. But my phone is beyond repair already and I am hoping that anyone will help me to reach the amount of money to buy a secondhand samsung a50 cause people told me it has a good processor and it might also help me to do streaming and raise more money to help my family and donate some to the church