If you're interested in working on Early Medieval Scandinavia, your best bet may be to get into archaeology. Due to the immense pop-history fetishisation of the Vikings, Norse Pagan mythology as a field has been largely picked clean, but the lives of actual early medieval Norwegians, Danes and Swedes still has much to offer.
So should i still go for it or should i change? I just love the period, not necessarily the vikings, i love what happened in Britain during the period.