I'm not familiar with that camera and flash (I started out with Minolta analog equipment and shifted to Olympus C-line cameras).
However, I use fill and bounce (which means light from the camera mixed with light bounced of the ceiling). It gives me results like this:
Mixed with window light:
Mixed with ambient lighting:
It's not necessary to buy lots of expensive lighting to take a decent photo. And lots of people with expensive lighting take shitty photos.
So, since your camera appears (from what I can see of it on the Web) not to have a built-in flash like my Olympus C-3040, you'll have to buy a slave flash (I can recommend the slaves from
SR Electronics for an inexpensive solution: their lowest-priced model should do just fine for you. The slave flash will be tripped when your camera-mounted flash discharges. Use it to bounce light off the ceiling and after experimenting a bit with exposure, you should get results like the above.