imcr in sim
If you are going to do imc practice on a pc sim it is worth paying for pedals and other similar items in my opinion because it reinforces good habits and foot muscle memory/coordination etc, rather than making you fly without and reinforce bad practices . Of course practicing an approach on your pc will help when it comes to the real thing but also when you are flying an approach, especially the first few, your workload is high and that is exactly the time when you need all of the other stuff to be instinctive so you can concentrate on the hard bits. Use a checklist. Have trigger points for things like prelanding checks , think about things like expected radio calls and time estimates to the beacon etc and generally keep the flow of things to do as close to true life as possible and you will find it will definitely help all aspects of the approach not just the needle chasing.