Set your camera to Aperture Priority and F8. Now you are out of program mode and have more control over what your camera is doing. Yet at these settings your camera will work almost totally automatically.
Choose an ISO that will allow a shutter speed fast enough to keep your pictures sharp. Probably faster than 1/60 with the lense you are using. A little faster would be even better. When you are in really low light open up your aperture as wide as possible -- knowing that you are then going to sacrifice depth of field. Which is fine....just be sure the camera focuses well on the desired area before you shoot.
White balance set to Auto will probably do a better job of selecting the proper white balance than we can do trying to guess what is needed.
The Aperture Priority and F8 will cover about 90% of the situations you will find yourself in unless you shoot some really diverse things.
The next step would be to go totally manual and set everything but I don't think you'll see enough improvement in your pictures to compensate for the extra hassle of doing that.