I just wanted to know If I canceled a monthly subscription if I would be charged for the rest of the year.
Depends on which plan you are on and how far you are in to your plan.
Cancel your membership or subscription | Creative Cloud
"Cancel an annual membership (individual or team)
If you cancel within the first month, you receive a full refund. Otherwise, you are billed 50% of your remaining contract obligation."
For month-by-month memberships, see the above link.
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