Sewing class

I am enjoying a weekly sewing class on the other side of the city but I live in fear of these machines. I'm paranoid that I'm going to stitch my hand or something.
Tonight, we had to change presser-foot a lot. I seemed to spend my entire evening either messing around with a screw driver (yes, they don't just snap and click like my home machine) or threading and re-threading machines cos someone had nicked 'mine' or had done something to it . . . .

SO. I sewed one seam. ONE. That's not a lot! This is week 5 and I've only got 3 left to go!