In case You never worked with CAD software, we can tell almost sure, that making the first design takes more time, as You made earlier. This is an absolutely normal process!
Just keep up Your courage! During the first design, You will take, that routine, which needed to use the funds confidently.
Just in this metaphor, about cars: "First You will look just the way, but soon with some routine You can look farther".
The using of the software is easy to learn for beginner and for advanced too. For ARCHline.XP® the most important respect to be USER-FRIENDLY and applying the ARCHITECT LOGIC.