I feel that I am always tired no energy no motivation?

im like this to. once i get going on somthing be it uni work or a diy project (i love working with my hands) im hard to stop and go all out but getting started is so hard
i need to get on with uni stuff today but cant seem to get my self going yet
only thing i find that helps is having a routine or planning things out the day before at least then you have somthing to aim for