1. Make the list (Maybe check it twice?) 

I don't really recommend having a planner if you never keep up with one, but I have found that just making a to-do list daily or at least weekly helps greatly with sorting what you want to do and how much time you have to get it done. Plus it helps you remember deadlines as well.

2. Plan your outfits 

I have found it quite effective to plan my outfits for the day the night before. Doing this takes the stress away from deciding what to wear in the morning and you can also sneak in an extra 5-10 minutes of sleep time after the alarm goes off. Deciding what to wear at night doesn't take that much time itself and just makes you feel more prepared.

3. Rewrite your notes 

Once in school and classes are all in session, take the time to rewrite your notes whether you had initially handwritten or typed them. This was you can really make sense of what materials were covered in class and clean up your notes because in class note taking can result in some fresh, undecipherable garbage.

4. Reward yourself 

While working on a long project or paper, break it down into smaller intervals. Whether it working on something for at least 10 minutes at a stretch, and when you have achieved the goal you can reward yourself.

Disclaimer: the reward can't be too intense (don't go buying yourself a new bag everytime you work for 5 continuous minutes), but just get yourselves a candy bar or ice-cream)

5. Just make a call 

Usually when I get stressed or overworked, I just call my mom and vent to her, maybe let out a hearty cry or just talk about dumb gossip, but either way, it really helps me calm down or at least distract from any imminent worry or stress that I might have. You can take this time to either call a parent or just friend and simply goof around with them as long as it helps you.