You're doing great!
It's totally normal to have emotions running all over the place and energy levels going up and down. Just take care of yourself and you'll start feeling better over time. It takes a while to even out.
And don't worry about how you sound in meetings. People are either glad to hear you share, or are too preoccupied in their own thoughts to notice, haha! Glad you're going to meetings.
Have a great afternoon!