in the US, you can text HOME to 741741 and someone gets back to you. it’s all text so it’s easier to be private if you aren’t able to speak freely or are having trouble verbalizing. https://www.crisistextline.org
you can email the Samaritans at jo@samaritans.org. they’re in the UK & Ireland, but I’ve never had them deny me help if I emailed from the US.
https://www.samaritans.org/how-we-can-help-you/contact-us
(boosts welcome.)