I have a summer seasonal affective disorder. I know it’s a bit controversial diagnosis, but I absolutely have a terrible time during summer. It’s so bad I start to be increasingly anxious about summer by the end of February because I know it’s slowly approaching.
I find daylight to be pleasant like everybody, but after a very short time I start to feel drained as if it was too much. I like cloudy days or when it rains. During summer, I basically don’t sleep. Even when the heat is not an issue I just can’t sleep.
Lately I’ve been smiling and laughing more and more; I feel much more at peace. It’s always strange to finally feel energized and genuinely happy when most people around me feel the complete opposite.
I knew someone who claimed that light therapy helped. I don’t know much about it, in your case it might be worth a short. Some people talked about melatonin, but I don’t think it helps that much if at all (but that’s just based my own experience).
In any cases, I hope this winter won’t be too hard on you this year.