RSM October Layoffs - advice

I am a tax associate at RSM about to hit my one year mark. I was completely blindsided yesterday when I got a webex invitation 15 minutes in advanced from an HR person titled "touchbase". My heart sank when I saw the partner join the call and basically started reading from a script with extremely general bullshit, i was so stunned I could barely process the information (as i had never received negative feedback other than under communicating and "asking too many questions"). I couldn't even form words and had to nod my head when the HR person asked if I wanted the partner to get off the call, the HR person then basically sounded like she was reading from a script and then threw in some bs about how she had come to appreciate our personal relationship and blah blah blah I still was shaking and when she asked if i had any questions i still could not form words and i started to try to say something and then she basically hung up on me. I truly wish I started recording the call because it was the most unprofessional thing I had ever experienced. I had never received any warnings about my performance other then general feedback and learning as i was a first year associate, and this came as a complete shock.

I am not sure if this has any relevance or anything but back before covid sent us all home I was picked to do a rotation in a specialty group and ended up splitting my time 50/50 towards the beginning and then it ended up being more 90/10 (90 specialty group) towards the end of the summer and fall busy season. I was still receiving work (from the specialty group) the day of when I found out i was laid off and even kept receiving meeting invites to discuss new assignments after I found out. The notice of being laid off came from the partner in business tax and not from the team I was doing the bulk of my work under.

I feel extremely hurt, betrayed, and angry right now. After working my ass off staying up until 2 am and getting up at 5 am and struggling being a first year associate trying to learn how to do my job with no in person help from my reviewers and superiors like you would get in a typical year. Juggling being on two teams (which by the way I never asked to do a rotation) and voicing my concern to managers that i was worried about falling behind my peers because I was rarely working on business tax compliance (the LOB i was officially assigned to).

The cherry on top and best part is that not 24 hours before I was notified about being laid off I was asked to participate in a career fair/recruiting event. How fucked up is that.

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Anyway I am not really sure what to do right now or if i should reach out to anyone, I am honestly so confused and advice would really be helpful