It is a fact that for the FAA Type Data Certificate for light aircraft, each aircraft type must satisfy the administration that it can be trimmed and landed 'hands off'. Trimming is the answer here. If in doubt as to whether or not your aircraft is trimmed, let go for a bit and see what it does. If you can't land after proper trimming then you are probably messing with it too much. It already knows how to land, because it has been demonstrated as such, you just need to give it a wee touch at the runway to make it a smooth and straight one!
As for the approach, once you are trimmed, control your height and rate of decent with power.