-Firstly decide what subjects are you going to study that day and general things you have to do in a day. Write them down.
-Write exactly what you have to do about that subject/thing in a day (for example: history-read page 26-78, write a few short lines about it + do a revision of 1st lesson)
-Choose a few of the lines as a priority.
-Start adding the time to every line (starting time and the time you will end) . Be realistic and dedicate a right amount of time to priority lines.
-Add time to other lines to
When you have wrote the certain time stick to it. Do not overload your day, as I said be realistic.
Here is a weekly planner I made for printing, so if you would like to use it just click below.
I hope this was helpful!
Have a lovely day! :*