First night in chastity, tips?

This will be the first night I am going to be locked away and I was just wondering if anyone had any tips to give me. My bf is going out drinking tonight with friends and took the keys with him while I stayed home to study, do laundry, etc. I won't see him til tomorrow at the earliest since we don't liv together and I just wanted to know what to do when I pop a boner in the wee early morning hours like most guys do. Stories about y'all's first nights would be fun too.