My old "Wolber" wheel became my "Wobbler" wheel several years ago. I was able to get it reasonably laterally true, but it had a bad hop, and some under-tensioned spokes. It became annoying after a while and I eventually replaced it. I believe that wheel had 36 spokes, and I never broke any spokes.
However, unless you are riding a fixie, I wouldn't encourage riding without a back brake any more than necessary.
What happens when you get a badly bent front wheel and need to remove the pads? Or, you have a brake failure. Zero brakes??? Or, as mentioned above, too much front brake can send you tumbling.
There have been people who have successfully straightened rims, but I'd encourage you to just buy a new rim (or new wheel), and fix it properly.