Morning
@Maxy , without seeing the food and insulin diaries that accompany these graphs it is quite hard to draw conclusions. What we do see is that you spike heavily with food and there looks to be a lot of yo-yoing going on, which has been discussed before. I'm guessing you take glucose to treat the lows and then find yourself very high afterwards.
The thing that I really notice are the following two points (and you can see it in the other overnight graphs):
These all show a significant falling in your bg level overnight, ie it looks like a drop of around 5mmol/l over the faasting period. This would typically suggest that your basal level is too high, and that there is constant downward pressure on your bg levels that you are trying to manage around.
The following graphs also show some interesting items which do seem to be repeated:
The red circle highlights a hypo and treatment. You see this in other points on your graph, and when you treat hypos, you seem to hugely overtreat them. Now this particular spike also looks like a bit of a CGM error as it jumps massively then drops off again within two hours, but the spikes you see post hypo suggest that when you treat them you are probably using too much glucose and you are getting a side effect glucagon release as well, pushing the BG levels up higher.
The blue circles highlight your reaction to food. Your spikes last around two hours, which is what you would expect. They are not of unexpected duration, but what is different is the timing. The insulin I assume you are taking with it is taking about an hour to kick in. I suspect that there are two issues here. One is your insulin carb ratio and the other is your timing. Both probably need some level of consideration.
The other Item that I noticed was a number of late night food items recorded with no insulin. Those seem to have resulted in a higher bg level post eating in the majority of cases.
I strongly recommend that you do a number of basal tests. Once that is correct it is much easier to reassess your insulin carb ratio and review your timing. This isn't going to be a quick fix, but only once you've done this can you start to look at using Metformin to reduce insulin resistance. I'm not a clinician, but your food and insulin data doesn't look (just from the graphs) like insulin resistance is taking place.
Hope that helps.