You may have many of agenda in your days, but you should schedule impotant things which one you have to give them priority. Do not do useless thing while you left the priority things. Homework always become one of priority things as a student. Finish it as well as possible, doit as soon as possible. You don't need to be waiting for a long time then you just doit. More faster you finish it is always better.
Below a fiew tips to finish homework on time and make it easier
When your techer give you a homework, don't be waiting till the time ging to be very less. Open it and read it. You may get some words that you still didn't understand, so you have more time to study and get the answer.
Don't be lazy. This is a common problem, so you don't need to let your self always being a lazy. You are student, a homework is your responbility. Finish your homework, you should do it well.
You may ask your classmate to have a studyclub. It can helps you to finish your homework more easier. Have a studyclub will also makes you more feeling enjoy.
When you have more time left you can make some correction of your homework. This is very important to make sure you did your homework correctly.
Do not wait until time is up. Do your homework as fast as you can. Do not wait until time runs out and you have not completed your homework.