Welcome to the home builder world !. The number of times I've done this, had second thoughts and redone stuff and generally looked at a final result and said, "nah, don't like that .... " ....well, I could write a book about it.
Plan well ahead, figure out what happens a few steps down the line. .... and don't get ahead of yourself. Most of all, stick with it and look to this site for ideas, inspiration and encouragement. I know I do ...