It was tough but its possible. You can probably do it for a year or two on your own. However, to do 100 + weddings in a year for a longer period, you would probably have to employ help and find a way to stay motivated. Doing the same thing so often over a prolonged period will very likely exhaust you both physically and mentally.
When I first started, I once did 7 weddings in 9 days and at the end of that period, I had almost nothing left in me. I honestly didn't think any of the 7 shoots suffered but it almost took the life out of me! I am really driven and the thought of getting 7 opportunities to shoot was the only thing that mattered (besides the financial reward). As in any industry that you are in, hard work is really important but in the creative industry, you really need to watch that you don't burn yourself out.
The 110 weddings that I did included half day shoots and ROMs. So it wasn't as bad as doing an AD once every 3 days but it was still a crazy period. Also, we tried to meet all our couples on the same day. That way, it left me with some free days to at least go catch a movie with the wife.
