Just set standard powers and attitudes for your aircraft to position for an approach. Following prelanding checks set the aircraft up in final approach configuration at a safe altitude and conduct a standard final descent profile, allow the aircraft to stabilise and then trim it out.
Dont touch the trim after that and then position on finals for the runway in use.
During the approach maintain a normal final gradient to the runway. If you are pushing forward then you are fast and if having to pull back then you are slow. This will give you a fairly good feedback of speed.