why am I tired all day but I am wide awake at night?

I'm struggling with this now. What you need to do is get up and do stuff during the day weather it's cleaning, doing laundry, going to the grocery store. Whatever it is make yourself exremely tired so you do fall asleep

When this happens to me, it's because I'm not on a sleep schedule. I need to be in bed when my sleep cycle comes around (each cycle is one hour and thirty minutes). So, I go to sleep at either 11:30 or 1 since I need to be awake by 6:30. I'm wide awake if I make one of those times to sleep, but getting a sleep schedule that goes with your sleep cycles can help so much.

Sometimes I feel that way when I have exhausting commitments in the daytime & freedom at night. Sometimes I have these awesome moments where I wanna make it last & not go to bed

Well, I think I prefer the night live better than the day because it is much more cool and silent at night. Besides that, I live in a hot climate country so most of our energy is spent to overcome the heat. At night I can feel the cold harmony breeze that makes my brain more energise than day.

The question is why am I awake at night? Being tired all day comes naturally when we don't get enough sleep. The reason is, in my opinion, is the calmness of the night that triggers our deepest thoughts and makes us over-think our life that we're not able to sleep anymore. Unhealthy habit after all. Meditation would help.

the main reason I think is that your sleeping pattern has changed so you need to try to stay awake in the day and sleep at night to correct this

Your circadian cycle might be confused; maybe you might to get a special light to help reset your internal sleep/wake clock.

I have the same problem! It's called insomnia, try listening to calming music or sleep with a fan on (causes white noise).

There are lots of reason that sleep can get disrupted. Stress can be a huge factor in sleep quantity and quality. However, to break that down a bit .... First, I look at the diet and the daily habits. Am I ingesting a lot of sugar and caffeine during the later par to the day? Then I would look at bedtime routine. Am I going to bed at an ideal time (btw 9-10pm) when the body is easily able to shift into rest? Am I turning off my lights and reducing sounds? Then I would look at the way I relate to my inability to fall asleep. Can I indulge in rest even if I am not sleeping? Or am I getting frustrated?

Your day/night rythm is confused. You probably slept bad the past days/weeks. Try to maintain a good rythm again. Doing some research on Google might help you with this. This happens to a lot of people, mostly because of using electronics at night. Try to set a good time to wake up. (I wake up at 6:30, because of school) Try to wake up at that specific time each day. Even when you almost don't sleep at night, wake up at the same time. You will start to feel tired througout the day, which enables you to go to bed earlier. Try to maintain a rythm which allows you to sleep enough hours. (Average 6.5 - 7 hours or more)