I"d like to start learning sewing where do I begin Sewing Machines Parts and Sales in Los Angeles

Hello,
I would like to start learning how to sew as i am a complete beginner at this. I have my grandma”s old sewing machine (one where you step on a pedal so it sews) and it still works pretty good. So I was wondering what would be the best way to start learning how to sew? Or are there any tips which you would have liked to know yourself before you started sewing which could be really helpful? All help is very appreciated!