You could try taking paracetamol and ibuprofen at the same time if you haven’t already. (Combining different types of painkillers is stronger than taking more of one type.)
You could also try co-codamol and ibuprofen at the same time, so you add codeine into the mix too.
Don’t mix drugs that have the same contents or painkilling action (so you can’t take co-codamol and paracetamol because that would be too much paracetamol). (I’m repeating what a GP told me a long time ago btw!)
If you try over the counter migraine meds, please check the ingredients before you buy anything (e.g. migraleve is just co-codamol with an added anti-nausea drug, but costs a lot more than buying the drugs separately.)
Hopefully it will get better over time - it did for me.