Mutating doesn't mean it's going to get worse. It's entirely possible for the virus to mutate into a less dangerous form. Going out of your way to get it now is too much of a risk.

While I don't believe SARS-CoV-2 is quite as bad as the media frenzy is making it out to be, it's absolutely a good idea to do everything you can to avoid getting it. The same goes for the flu and for colds. If you catch any of these, you may be OK, but you risk spreading it to people who won't be.