You're doing awesome for someone without experience!! All I know you know too (I learned what I know from people who hand held me when I found a 1-week old kitten), so I can't contribute, just wanted to say thank you for your kindness to this beautiful kitten. I found that the hole in the teat of the bottle was a bit too small, but then you have to be very careful that it doesn't become too big if you insert something in it to make it bigger. Also, I assume you are stimulating his organs so he urinates and defecates...