Insight, libre 2, my sugr

I've recently moved and it's not easy to get to diabetic clinic although I am aware they use different equipment to me. I am still in messaging contact with my old diabetic nurse but we're limited in what help I can have. I've had 3 out of 5 libre 2, faulty from the start this year alone. Last year wasn't much better. Recently MySugr wanted to do any update and it wiped ALL my bolus increment amounts so I lost all info on what I took for each meal and correctionals. The company can't get them back either. But tell me if all the wonderful things the app can do. Not much good to me if this happens. Since being on this for several years my one concern was relying on technology, what if it went wrong. Well it did! Massively. I have ME also so it's hard for me to think clearly at times, so something like keeping increment doses written somewhere else I hadn't done. My nurse couldn't help. The only way to get this info else where was with the insight hand sets and mine stopped working years ago and they don't make them any more. So back to pen and paper. Whilst trying to find which increments work over the last 10 days, I'm now on several days of highs and needing a lot more insulin so back up trying to re calculate until my blood sugars and insulin requirements change again. I'm now on a higher basal than I have been for over a year. So if insight is being phased out what do I go to next? What blood testing machines to people use now? I have the accucheck mobile but have never had it connected to anything else, it's just for the test. My clinic didn't seem to know much about it.
They did tell me though that two new insulins have been successful so I don't have to be on the pump. Tresiba and fiasp. Not sure what to do next but I can't carry on like this. Exhausted and with I could have better blood results. My nurse says being 51% in range currently I'm doing well. I don't agree but my diabetes doesn't s such a battle, getting good results has always been difficult. I'm also on 4 metformin a day. I had breast cancer last year. I've moved twice in 2 months. I am unable to work. But I get up each day with a sunny disposition and hope and positivity but this is testing me always