Brugee

Trying to get from Bruges to Interlaken in the fastest, cheapest, and most efficient way. Been looking into train travel, and have been quite confused by the variety of apparent possibility. Also been going through the flight websites, and haven’t found anything even remotely in my range. Any advice on the best way to do it by train, or perhaps a website or company to use for flight travel, would be really really helpful. I’m leaving for Belgium next monday, and want to head to Interlaken by saturday (probably take a night train friday).