before going to bed if u think that today might be ur last day and u might be punished after death or Allah might punish u in this world for not praying fajr, inshallah it will be easy for u to get up for fajr.
sleep early and set up the alarm. keep making dua's too.
and praise Allah that He made ur heart fearful of missing fajr while many dont care of any salah. its a sign of His love.
Make du'a before you sleep, and remember Allah knows what is in your heart, and ONLY with Allah's help wil you be able to get up. Trust me, I know from experience.
You could put your alarm clock/phone on the other side of the room. So the only way you can turn it of, is by getting up, and once your out of bed, you can pray!!!!