When I just started out, and that wasn't so long ago, and was confused about what settings to use in manual, I'd put the camera in full auto and look what the camera chose for settings. Put camera back in manual duplicate the settings and see what I could get on my own. Adjust from there.
One tip about exposure I read here at POTN that made a lot of sense to me was this: Set your DOF first, (apeture); then set a shutter speed at which you feel comfortable; finally, raise ISO until you have a proper exposure. For example, when shooting your daughter in her room, set a reasonable apeture so the part(s) of her you want in focus are in focus for how far you are from her. Next, set a comfortable hand-holding shutter speed like 1/200 maybe. Adjust ISO until you have the needle close to a proper exposure and take the shot. Adjust ISO or shutter speed as necessary.
Go take a shot and let's see what you get!