Sebastian is currently enrolled in the Doctorate in Sport and Exercise Psychology at Glasgow Caledonian University, which is accredited as a BPS stage 2 in Sport Psychology training. He has a graduate degree in psychology and a masters degree in sport science. He started is career working with the academy squads of a hockey club in 2013. He worked as a sport psychologist for an elite handball club in Spain, competing in the premier division and in Europe during four seasons. He also worked with individual tennis and golf players. He currently works with the Scottish Handball Association providing psychological support to the national academy squads.