Go for it! It's fun and you'll appreciate your ride even more.
I got my Edge last fall and the first thing I did was clay bar, polish, then seal. I had never attempted to polish a car before cuz I was afraid I would burn the paint off (I used to be a pipefitter that used a side-grinder to grind welds. That's not anything like a orbital buffer).
ThePorter Cable orbital buffer made it easy. At no point was I afraid I was going to damage the paint.
I got a great finish and have been taking care of it since. I'm over due for another polish but ...it's 115 freakin degrees!!! I'll wait for fall.