I'm on day 44 and need some advice

This also happened to me while on a 80 day streak. My best suggestion, as a student myself, is to find a way to use that sexual energy which is building up within you. People here tend to refer to this as built up energy, I believe the terminology is much broader. From research I've read about I've concluded that this is, as you stated, a cry for dopamine. If you relapse and give your brain what it's craving for you'll never find your way out of this. Instead I suggest you do something to get your mind out of that dark mentality. I tend to go for runs, hop into a cold shower, or simply meditate. You can also do a combination of all three as I've previously done, which all work towards getting your mind out of that dark place and hit the reset button within your brain to calm your thoughts and get to work.

Believe me your mind will thank you for this later. You may feel like you've run out of fuel now, but once your brain gets used to a regular/acceptable level of dopamine you'll be living life to the fullest. I was there during that 80 day streak and hope we all reach that freedom to experience life without having to depend on pornography to bring temporary happiness.