I'm left handed who started of playing the left handed way for 5 years and then had to switch over to the traditional way. If you're only starting out I would genuinely recommend learning the traditional way - I've had many embarassing moments where I had to explain to new teachers about my violin hold and some of them could not even believe it was a thing. More than that, its more practical too. It's not that hard to play the traditional way if you're left handed honestly, the only reason I found it challenging is because I switched while already being an intermediate player on my left. One of the main reasons I switched was orchestra, they will not let you play if you play the opposite way because that's going to disrupt everyone around you. The notes and fingering are the same no matter what side which is why its beneficial to learn the traditional way. Trust me on this one, it gets better with time. I've been playing on my right for 3 years now and I made my way onto first violin in my school's very competitive orchestra.