If you think you will stick with this hobby, then you might as well spring for Realflight G5, that is if your Pc is up to the task.
The sim is great for begginner training, but it has also been a valuable tool for teaching myself areobatics and 3D flying. No sim is exactly the same as actually flying a model, but it will teach you the basics of how to perform a manuever and will help you gain the muscle memory and reflexes you need. Knife edges, flat spins, stall turns, etc. were all practiced for several hours on the sim before I tried them on one of my models.