Do the things that give you joy in life and stop worrying about the grind. Travel, go camping, join a meet up group, go to the pub, etc. You might be able to

Do the things that give you joy in life and stop worrying about the grind. Travel, go camping, join a meet up group, go to the pub, etc. You might be able to find something which provides motivation - e.g. if you're studying French you could go and visit France, if you're doing software development, you could buy a few single board computers and muck about with them.