I used to feel the same way, even though I'm not at school anymore. Somehow, mondays seem so dreadful to us. Having to get up early again, thinking about potential stresses of work or school, thinking of how many days to go till weekend... Well, I try to work on it though. I count my blessings and try to make my mondays fun and positive. I hope you can find something good about the beginning of the week, or maybe keeping yourself busy till then could help. Like reading a good book that will keep your mind busy and off the useless worries.