Hi YL
I'm just starting my second year with the OU, working towards a degree in Social Sciences with Sociology. Are you starting with DD100?
I haven't got young children and I'm not working at the moment, so I'm not the best person to offer advice on time management, but I do know that lots of people do manage to do it successfully and I'm sure you will too.
Have you accessed FirstClass yet? There is lots and lots of great support on there.