I must admit, after doing internet boating forums
for the past 15 years, this is among my Top Ten in questions! Congratulations.
There are a few things that could help you out. Given this question itself, I offer these in a friendly spirit.
The sun comes up at a different time and place every day.
Unlike highways, which require you to follow the road, you can maneuver your boat
so the sun is not directly in your eyes - just turn port, then starboard.
Sometimes there is fog