>>2907995
A general sewing machine youtube tutorial might be useful then. Modern sewing machines are pretty similar across the board.
You could also ask on reddit if anyone is familiar with your machine, or try to find a manual for a similar one. If you're willing to buy the manual, check out https://manualsoncd.com/product/jcpenney-6912-sewing-machine-instruction-manual/?srsltid=AfmBOoqcj4U1kLbsuWZxxtukftMkTGjoz5KpPSvX11mz-tYjZ3Hwso10 for a machine that is basically identical to yours (picrel)