Hi there
I have tired keeping him awake at the 730 wake time in morning but he got so overtired and rest of day was a disaster
Do you mean you have tried to extend the first A time? If so, did you get a 30 min nap?
Looking at your EAS generally, it does look like he could manage a slightly longer A time first thing as that nap at 1 hour and 10 mins seems a little bit of an UT nap, but perhaps he can only manage a small increase. Some LOs do prefer a shorter first A time. Around this age, LOs can often seem tired before the nap but actually it could be boredom, him asking for a slight change of scene.
Why not try extending by five/ten minutes only and holding for three days at that extended time. Follow his cues and if he looks tired then take him into a different room or the garden (if it's nice enough) and just wander quietly round for a few minutes pointing things out. Keeping it very low key and low stimulation. This might help him settle well for that first nap.
Those afternoon A times are significantly longer - perhaps a bit too long. Have you seen the average A time for his age here?
Average A times- BOOKMARK ME! Not all LOs follow the averages, but 1 hour 45 - 2 hours would be approximately right for this age. So that first A is quite short and those later ones are quite long.
Wake 1215/1230A nappy changeE 1pmAS 3pm - 45 mins
Are you waking him from this nap? How is his mood on waking?