First, get your machine in order. If it doesn't sew or is missing parts, send it to a repair shop. If you don't know how to make it sew, get lessons. Try to find/buy the user's manual and the service manual while you're at it. Make sure the thing can run and you know how to make it go where you want before you try to make anything.
Your first projects have to be simple totebags and/or pillowcases. So you'd need:
- fabric and thread (supplies)
- Scissors, maybe thread snips (Don't use your scissors to cut anything other than fabric, paper dulls scissors like you wouldn't believe).
- Bobbin (and matching thread)
- seam ripper (I mean, it's easier to just start over and chuck the fabric, it's not like you're sewing with anything expensive at this point, right? But I guess sometimes the fabric is really cute and you would rather unpick the stitches and reuse the fabric? idk)
- I suppose you might need a ruler and something to mark the fabric with (I like the fabric marking pens that wash out with water)
- An iron. You should start the habit of pressing fabric even if you're only making totebags/pillowcases.
After tote bags and pillowcases, you can try rectangle skirts, then start working your way up to more complicated things. At this point definitely get ahold of the Reader's Digest Complete Guide to Sewing as a reference book. Pick up the rest of the tools you need from the instructions for whatever you're making.
Don't start buying tools all willy nilly until you need them, otherwise you just stash them someplace and by the time you need them you'd have forgotten where you placed that bodkin or buttonhole maker doodad or whatever.