This Friday I'm making the next step in making my dream of living off grid and ~90% self sufficiently a reality. I'm handing in my one month's notice, and I'm really nervous about it. Anyone got tips?

I live in the UK but work for a tech company in Singapore. There are only two employees in the UK including me, so this spells trouble for the company. However, I'm being paid minimum wage for a skilled position, and have every right to leave - so why do I feel so nervous? I was going to hand my notice in three days ago but I bottled it because other work related problems came up, so it seemed like a bad time. But it occurs to me that it will ALWAYS seem like a bad time.

EDIT: I've come up with a plan for handing in my notice. I'm going to write the email out in full, save it as a draft, and then get drunk and watch videos on permaculture until I have the courage to send it.