Recovering Car Accident Costs

I had an accident near Pindong during Chinese New Year. Thr guy I hit turned left in front of me, was driving without lights at 9:30 pm, and breathalized positive.

I have about 300,000NT damages which I am having to pay about 112,000!.

Despite the fact that we both have the same insurance company, this guy has insisted on this split, and I can’t do anything about it? I’m told we can sue - but it could take a long time and our lawyer fee could be about the same as the loss. Anyone any advise or had a similar experience?