Toddler barely sleeps. Melatonin???

The Little Mermaid

Two year old goes to bed at 11 and wake up at 5. In the day he doesn’t nap unless I drive around in the car and he takes a cat nap for about 20 minutes. I’ve tried everything and nothing works. I also make sure his days are fulfilled and busy but that doesn’t seem to work. So in order to get a damn break should I hire a nanny for a couple hours? Put him in front of screen? Or try melatonin? I just want to be alone once in a while. Everyone we know works a full time job and don’t have time to help with babysitting. Is 6.5 hours of sleep enough for a two year old boy? Besides “me time” I’m worried not sleeping would affect his development somehow also. I know most kids around that age take a nap in the day or just go to bed early and wake up late like 8pm bedtime and wake up at 8am totaling the 12 hours they need in a 24 hour day.