At the same time, I have a Canadian tourist visa and a student visa, and I have decided not to study. If I don't cancel my student visa, will it affect my travel?

If your Canadian tourist visa and student visa are valid, but you decide not to study abroad, then not canceling the student visa may have a certain impact on your travel plan.

First of all, if you don't cancel your student visa, it may affect your eligibility to apply for a Canadian visa in the future. The Canadian government may think that you once had a valid student visa, but decided not to read it, which may reduce your credibility when applying for a visa in the future.

Secondly, if you don't cancel your student visa and plan to reapply in the future, you need to ensure that your tourist visa and your student visa application materials are consistent. If you provide false materials or deliberately conceal your real plan when applying for a tourist visa, it may have an adverse effect on your future application for a student visa.

Finally, if you don't cancel your student visa and plan to travel with it in the future, you need to make sure that your travel plan matches your plan when you apply for a student visa. If you provide false materials or deliberately conceal your real plan when applying for a student visa, it may adversely affect your future travel with this visa.

To sum up, if you have decided not to study abroad and want to ensure the smooth progress of visa application and travel plan, I suggest you cancel the student visa to ensure that the application materials for tourist visa and student visa are consistent.