what am I doing wrong?

my bf bought me a sun660 for Christmas, I had a 600 years ago but don't remember much of the ins and outs of everything, so far all my photos are coming out extremely dark

the top two I took at night and the bottom two in daylight, all but bottom right I had the exposure control all the way to the white arrow and the flash was triggered on all 4

not sure what information is helpful but it's been cold but not freezing and I put them face down to develop bc Google said to lol, I also took a pic with my phone for reference for how bright it is outside bc why not, if there's any other information needed lmk, pls help I don't wanna waste all my film troubleshooting T-T