Recurring UTI getting worse on daily nitrofurantoin

I’ve been battling this UTI- 2 cultures so far have said EColi and I’ve been to A&E twice with kidney pain, vomiting and fever. It has never really gone away and I’ve tried Co-Moxiclav, Amoxicillin, nitrofurantoin, cephalexine.

Most recently I’ve been prescribed 50mg of nitrofurantoin daily and it’s honestly just gotten worse. I can’t work, I feel weak, kidney pain is amping up and I don’t know what to do. It’s affecting my mental health and I don’t want to go through this forever. I’ve upped my water intake, taken D- mannose and cranberry juice.

I’m just struggling and a referral to the urologist is taking forever. I just need to hear what other experiences were and whether this gets better.