I am 18 & got legal notice from Google accidentally uploading child pornography

I traded my phone last year with a friend of mine, even after resetting a few times some of the videos and pictures were there so I decided to upload them in a google drive and send it to him as he was far away.And I had to use to accounts to upload because not all the videos and photos were uploading at once in a single account. But when the uploading was halfway I received an email from google which is : " A review of your most recent appeal confirmed that this account was used in a way that violated Google's policies. As a result, your account access can't be restored. Any future appeals will be closed. Your account and its data will be considered for deletion starting 11 months after the account became unavailable. If you live in the European Union (EU) or are an EU citizen, there may be additional resolution options available to you. Google is committed to keeping people safe online. Check our Terms of Service for more information about our policies and the actions we take in response to policy violations on our products. " Then I read their policy which is : "Don't use Google services in a way that exploits or abuses children. We act on the following kinds of content: Child sexual abuse materials, including cartoons. Child grooming - for example, befriending a child online to facilitate, either online or offline, sexual contact and/or exchanging sexual imagery with that child. Sextortion - for example, the use of real or alleged access to a child’s intimate images to threaten or blackmail a child. Sexualization of a minor - for example, imagery that depicts, encourages or promotes the sexual abuse of children or the portrayal of children in a manner that could result in the sexual exploitation of children. Trafficking of a child - for example, advertising or solicitation of a child for commercial sexual exploitation. This content includes anything that's created, shared, sent, or uploaded on Google services. When we come across child exploitation, we'll take appropriate actions. Our actions might include reporting child exploitation to the National Center for Missing & Exploited Children or law enforcement, and disabling accounts. Note for certain of our communication services: Within the European Union, certain of our communication services detect online child sexual abuse under the Regulation (EU) 2021/1232, which provides for a derogation from the confidentiality of communications under the Directive 2002/58/EC for the purpose of combating online child sexual abuse. Under Regulation 2021/1232, if you think your account was disabled by mistake, in addition to requesting review, you can lodge a complaint with your country’s relevant data protection authority. You also have the right to a judicial remedy before a competent court." I gor scared and logged off from two accounts and now I am feared if I'll face imprisionment for this stupidity or not or can I take any legal action, I still have that phone.