I wanted to help speed up your learning process and get you to having fun asap. You will need hours upon hours of playtime and some very expensive, high-end hardware to even touch the level of satisfaction that this game can offer you.
If you're just starting off you'll quickly realize that this is a VERY COMPLEX SIMULATOR. We all know now that its a game with a very demanding and outdated graphics engine and a very buggy one at that but its still considered one of the most realistic, immersive and captivating bus sims out there with some of the most detailed realistic maps and probably the best physics and force feedback I've ever experienced in any simulator hands down. OMSI 2 is still around and still very popular.