i guess the moral of the story is that i need more accessories for the cam try to get some help so i can use reflectors and or diffusers.
Actually, I would disagree. I am far, far from being a professional, but there are two things I always try to do which I think would have helped you in this situation.
1. Control as much as you can
off the camera, before I start looking at what I can control on the camera.
2. Always think about light as the number one thing I'm trying to control via all my other settings both on and off-camera.
Applying this in your situation at the beach would have meant things like:
What time of day should I shoot this [to get nice light on my subject]? (e.g morning or afternoon, or indoors).
What angle am I shooting at [to get nice light on my subject]? (e.g shooting down on your singer whilst she was looking up would have given you more light plus still have some water in the background).
What pose is my subject in to optimise the light hitting her? (e.g is her face in shadow but her body in the light etc etc).
Where am I shooting my subject? (e.g that sand is bright! Maybe getting her into the water would help etc).
By all means, a tripod, ext flash etc - these are all very handy things to have, but they are just more ingredients to the picture, but they cannot make a bad picture good, nor produce good pictures by themselves. As an analogy; salt is a great ingredient in soup, but you can't make a soup from only salt, and you can make a damned good soup without it if everything else is right.
The camera is really the last step of the picture making and taking process, and if we don't get the previous steps right - or at least take them into account - it's a very big demand on the poor old camera. If you set up for success, you make it a lot easier to get those keepers.