Hi there! Only you can really write this letter, but I can provide you with some guidelines on what to write.
When you wake up in the morning, I'm assuming you typically brush your teeth and eat breakfast. Then you go to school, talk to your friends, and learn. Once school gets out you may either go home or to an extracurricular activity, depending on your daily schedule. Once home, you probably get on your device and eat dinner at one point, and then get ready for bed, take a shower, brush teeth, etc. Then you go to bed.
Just transform that information into Spanish, and there you go! :)
Answer:
el correo would be my choice
Answer:
I know 15 means I love you of some sorts
and 24 means the boy I can try and add more if I know