I wasn't coping well with lengthy trips. I don't mind frequent, but when they go over 15 days, I can't handle it. I miss my kids too much. (well and hubby too)
I ended up switching jobs, which was an extremely difficult decision. Since I was VERY picky, it took almost a year to find a new job that met my criteria. I didn't want to give up the travel and I didn't want to be relegated to a single region. Nope, I want to have GLOBAL responsibilities. That was very important to me.
However, I knew that the old job was making me absolutely miserable and it wasn't getting better. I know that this isn't the answer you're looking for, but I am posting because it was the only solution for me that really worked.
I've been at the new company a year tomorrow and couldn't be happier. I still travel just as frequently, still go all over the world, but have more control over the length of the trip.
Of course, this greatly depends on what you do and my decision may be completely unrelated to yours. However at the end of the day, I believe that most of us here in this forum (even though I'm new to posting.. I am a long-time lurker) enjoy travel and if you don't, and can't find an easy way to make it work, perhaps you should consider other more difficult options.