When is my product going to be activated?

Hi @Tatyana5F85,

With a browser that accepts cookies and does not have script blockers, please log-in to your account portal to check the status of your account.  If you purchased a monthly plan yesterday, it should renew automatically in 30 days unless you cancel it.
https://account.adobe.com/plans

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How do I Cancel my Subscription?
https://helpx.adobe.com/manage-account/using/cancel-subscription.html
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Subscription & Cancellation Terms:
https://www.adobe.com/legal/subscription-terms.html

CONTACT ADOBE SUPPORT:
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Online Chat: https://helpx.adobe.com/contact.html?rghtup=autoOpen
Phone M-F, during normal business hours: https://helpx.adobe.com/contact/phone.html

SOME programs are available Monthly https://community.adobe.com/t5/Get-Started/Being-charged-for-a-full-year-when-i-m-on-month-to-month/td-p/10248222 - links and pictures

If you did not specifically buy the Monthly plan (which costs more each month but which may be cancelled at the end of any subscription month) what you have is an annual plan with monthly payments... and you pay a fee to cancel after 2 weeks and before the end of your year

When you 'click to agree' to the subscription terms while buying a subscription, that means that you really do need to read BEFORE you enter your credit card number to buy a subscription... See this page for more information, including a highlited section from the subscription page https://community.adobe.com/t5/account-payment-plan/cancellation/m-p/12153645
-Purchasing FAQ https://community.adobe.com/t5/Get-Started/Purchasing-FAQ-How-do-I-purchase-a-Creative-Cloud-membership/td-p/7431151

It will not expire. You cannot "buy for a month". If you buy the month-by-month program you need to cancel, on the last day of some month ideally.