Imaginative Student Has Trouble Adjusting to Workbook-based Curriculum
You are trying to achieve something, presumably a mathematics degree. Often, it is necessary to do dull, uninteresting things to get what you want. You have to decide first whether you want the degree, and the opportunities it will bring, enough to be willing to do things you do not enjoy to get it.

If the answer is "No" drop out now without wasting any more of your time and money.

If the answer is "Yes" you need to think in terms of doing something today, doing it now, to get what you want in several years time. Each homework assignment turned in on time is a small step to your objective. Its entertainment value, or lack thereof, is irrelevant.