I was forcing my DD to have day naps up till recently when she quite obviously didn't want them. Finally not able to make her any longer, without it being a BIG deal I just let it go. Since she stopped having day naps she goes to bed by about 6-7 and is awake 6-7 with one-2 wake-ups a night. One of the keys for us was watching her signals in the arvo when she didn't have a nap to get her into bed earlier than her previous 7-8 bedtime. We followed the no cry sleep solution key point that says when you see them show signs of tiredness in the evening even if they haven't had dinner and bath just put them to sleep. So DD missed dinner and a bath for awhile till we got better at getting her dinner by 5.

TBH tho whatever happens this is just what kids do... It isn't you being a bad mother. You sound like you are doing it all right. Kids just change and we have to work with them sometimes. Also I don't think 7.30-8 is particularly late. He is getting 12 hours sleep overnight from the sounds of it. You will probably find if you bring his sleep earlier then he will wake up earlier. That has happened to DD. She used to go to sleep at around 7.30-8 and then wake up at 7.30-8. I must say that I enjoy the quiet time with DH in the evenings tho. Good luck. I hope you find something that works for you