Help with nap schedule

My baby is 14.5 months old. He used to wake at 7am but now he wakes at 5am and it's become the new norm. I'm exhausted.

First nap: I count 3-3.5 hours
Second nap: 4 hours
Bedtime 4.5 hours

The times have been ranging due to him waking up between 5-6:30am.

I love bedtime to be 7/7:30 since my toddler goes down between 7:30/8.

Anyone have any solid feedback for me?