i need to leave my house

i have to go to an appointment tomorrow, but my anxiety had a really bad flare up today and i spent the entire day basically bed bound because of it. it's like a never ending panic attack. since going out is one of my triggers, im scared it'll get really bad once i leave my house, and i can't avoid this appointment. i wanted to put this out here because i feel like "voicing" it out could maybe help.