I Want To Become Totally Unpotty Trained

I've been wearing diapers for the last few weeks with the aim of unpotty training myself. I be basically been drinking tonnes and letting go as soon as I feel anything.
So far it's been good I've done 14 wet nights in a row and I'm sleeping through my bed/nappy wetting. But this morning I think I had my first genuine totally unaware until it started happening accident.
I was at the station waiting to go to work when I just felt by pull-up getting warm and realised I was wetting I didn't even feel particularly like I needed to go but not was definitely peeing. I was a bit worried that I'd leak but I couldn't stop at all now that I was peeing.
Thankfully my pull up nappy dealt with it all and I was able to change once I got to the office. And yes i was filing by chastity cage when I go changed. I guess it's going to be a while still until I'm fully unpotty trained but this was a wonderful first step