Long Time Bs Problems, Few Q's! (i Searched!)

Hi there! After trying to figure this out on my own for 5 years or so, I thought I might ask a few questions to people who might know some answers!

I've been hesitant to goto a doctor or nutritionist but I'm so frustrated.

I've got some pretty standard symptons, don't eat enough for a while, have a crash, eat to much sugary stuff without something base in my stomach have a crash. (crash = can't think, angry at everything, ultra annoyance, fatigue)

I've gotten good at eating 6 times a day, I find breads mostly keep my stable, as well as protein. I don't drink any coke, eat cookies, cake anything bad. Workout usually 3 times a week, pretty darn healthy. Coffee in the morning usally helps, but I get depressed usually 1 in 3 mornings till noon anyways.

For the most part I eat lots of base stuff to keep myself stable, breads and crackers, fruits and meats. I have problems keeping my weight under control, I do a physical job, workout and eat fairly well. But I eat really often to stave off any attacks that might result from forgetting to eat etc. Like I eat usually before I goto bed, and often in the middle of the night or I can't sleep through the night. Also so I don't wake up and am furious.

I've read some of the guides to eating, like no bananas, no sugary stuff at all, but I find the breads do the best job of keeping me stable.

Any ideas on how I can reduce my overall consumption per day but still keep stable?

Its been a revelation since I started eating more regularly (every 3 hours) since I was younger. People used to hate my wild mood swings, I did too, I'm also super sensitive to noise and things like Eating noises, I don't know if they are linked to my blood-sugar or not, but it can be really limiting in my everyday life.

Anything anyone can contribute would be appreciated.