Frascati,
I can't do much in the way of helping with your modeling issue, but offer this humble advice. Do not delete this thread or any of your posts. They will serve you well in the future. They will be reminders of what the true source of your frustrations were and the solution(s) to them.
Years ago in the midst of preparing final presentation boards for an architectural class, I realized that I had made a basic layout error causing the previous 40 hours or so of work to be completely useless. I sat at the drafting table looking for something or someone to blame, and could find none. I ripped the board off the table and stomped on it with a mighty fury. An exact replica of my gym shoe was left smack dab in the middle of it. I grabbed a beer out of my dorm fridge and made my way to the top of the "world famous" architectural building on the campus. While sitting atop one of the two massive girders supporting the building, sipping a cold one and looking at the Chicago skyline, I reflected on why I wanted to become an architect along with pondering what foibles and obstacles the architect who designed the building beneath my rear had overcome. I realized that perseverance rather than perfection was going to be my way thru. I literally went back to the drawing board and worked there continuously for about 3 days and nights and finished the work. It turned out quite well.
I keep that screwed up "Strathmore" board with shoe print in a flat file in the house, it is a reminder of how close I came to letting my anger destroy what has been a really good life in architecture, and a good life in general.