If you struggle to wake up in the morning, consider how much light you allow to enter your room. This is a trick I learnt when I used to row competatively, as I had to get up in the early hours of the morning and really struggled. To keep it simple, sunlight suppresses the secretion of melatonin which wakes you up. So, depending on the time of year, keeping the blinds slightly, half, or completely open will help you wake up - and feel alive and kicking when you do. I also use this to my advantage if I want a lie-in, because once in a while I like to "catch up" on as much sleep as possible if I'm not busy that day. In this case, I completely close my blinds and try to limit the amount of light entering my room. An extreme example of this was last summer when I got a ferry back to the UK from Spain, my room was pitch black with zero light entering, so I didn't set an alarm and 14 hours later I finally came around. You can manipulate light in all sorts of ways, so give it a go, experiment, and see what works for you!