I'm a CS master student I'm trying to change my sleeping habits. I used to wake up 9 am everyday, but now I want to change that to start waking up at 6am. I have some friends who wake up at 5 or even 4 and they wake up completely fresh and they start doing their homeworks and study and code.
In my first day I woke up completely fresh and started working fluently. Today is my second day, however I feel sleepy and unable to completely focus on reading papers or writing code. Is this going to continue like this? Or is my body going to change? Because I want to wake up at 6am as if I woke up 9 am and get the same feeling of sleep-satisfaction. Although yesterday I slept at 10:30 and today I woke up at 7am but I'm still not satisfied and feeling sleepy. So what's wrong?
EDIT: I don't drink coffee at all. I only drink green tea and mint. As I'm now working on my thesis so I don't have courses or need to go to the uni, i.e. I work at home. So I wake up at 9am usually, take a shower and get a very light break fast, then do some web browsing to have my brain get alert and awake. That process takes about 1 hour after I wake up. After that I start working on my thesis for couple hours (of course I take slight breaks of 15 minutes) and then at 2pm I usually eat my lunch. I take 1 hour break after lunch because I can't work directly after eating. Then I return to working at 3 or 3:30pm until like 8pm. Of course I also take breaks during that time. Sometimes I work until 9 or 10, but if that happens it means that I took too much breaks. Because I feel guilty then I work until 10 or even 11 or even 12 or 1 am. After that I sleep and the process continues.
Sometimes because of this routine there are days when I can't work at all. Like I start my day and say yes I will work after an hour but that never happens and I keep doing this and end up just wasting the entire day without really having a fun day or doing any work. I also work on weekends (expected since I'm a master student). Sometimes I go jogging for 2kilometers. Also I like to walk a lot.
I think I have a bad routine but that's mainly because I don't have a stable life at the moment because of my thesis. It's a very tough and stressful period. Also I feel guilty if I don't take up the entire day for working. :/