Why do I keep waking up too early in the morning?

Examine the activities you engage in during the 3-6 hours before going to bed. Among the many reasons could be: going to bed very early, focusing attention on anxiety-producing subjects, or simply getting the 7-8 hours of sleep needed.

Maybe something is bothering you or your sleep cycle is disturbed or you are thinking too much about waking up early, so this must be keeping you awake..

I think it has to do with your sleeping habits. Were you working in a callcentre with irregular timings? Or do you have sleep disturbances and you don't have good sleeping patterns? It may also indicate your biological clock is disturbed either due to health issues or hormonal changes or you may be depressed. These are the things that must be addressed. If you are awake by 4 am it is fine. If too early it needs to be addressed.

Maybe cuase ypu went to bed too early or your body clock is used to getting up early and you have been getting up early for ages now

You must be used to early timing. But don't worry you'll start waking up later soon. It's just new..

You might have disrupted sleep or some thoughts lurking in your subconscious that make you wake up before you need to.

Are you maybe going to bed too early or too late? Or maybe you have too many thoughts in your head before bed or you're thinking about the next day so that you're body is waking up to try and get everything done? I don't know your situation and you might already do this but something I do before bed is write down all my worries, all my thought, anything and then after that I write down everything I'm thankful for. I hope this helps! You can message me anytime. I'm sending love to you and I'll keep you in my prayers.