i completely get that Jonathan. Perhaps you could time your insulin better too. Test before eating. If its above 5, then take your insulin first and eat something with fat like a peice of cheese or almonds (that helps to stabilise the blood more and prevent the spike) - wait 15 mins for the insulin to start working, then eat your meal.
I also find that if im heading to the 8's, I do some burpees or star jumps for 3/4 mins in my room which has also helped me. Sounds a bit mad but it really helps and on the plus side.... youll have a better physique...lol
Having diabetes is hard at the best of times but once youre in control, it gets easier.
Youre a growing lad so I guess you need carbs..... but theres some good carbs and some bad carbs. Stick to the sweet potatoes, brown rice / pasta and wholemeals. i find dark chocolate works well too.
If you need any advice, this forum is brilliant and feel free to ask me anything if ever youre unsure of anything.
As you bring your sugars down...the hypo feeling at 5 will go. Just dont treat the hypo feelings at 5. Keep testing.
Id only treat the hypo if Im closer to 4 but then perhaps with just 3 jelly babies or 100ml lucozade followed by a small banana or a digestive.