The feeling after the presentation is just the worst, like my mind just won't function and cant get anything done for the rest of the day.

I know how that feels. A 2-3 minute presentation can feel like 2-3 hours. Typically I try to still do work to avoid the feeling of my stutter owning me.

Wondering if anyone else has this problem or any advice.

We all have this problem. As for myself, typically I tend to memorize every word in order, it makes me feel at more peace that I know every word I want to say. With that I go for three variations of the presentation, perfect fluency (which never happens lol), moderate stutter or sever stutter during the presentation. I feel that peace for a little while... and not while presenting! The best thing to remember beforehand and during a presentation is that people tend to care about what you say, and not so much about how you say it.

The best thing that helps with presentations, is practice, not avoidance. You’re going to stutterer, you are a stutterer. But you can be a great presenter regardless of the fact you stutter.

If you’re doing this for school, a good thing to do is tell your professor in advance. From there you have some options. The best one, in my opinion, is to continue, and ask what are the “hard” requirements of the presentation? Most of the time, it is going to be the topic or the amount of time. These are things you can prepare for, you know you’re going to stutter! As for time, I always tried to negotiate more time as an option with the professors with under the rationale that I'd practice for presenting in the initially desired amount of time on my own time.