It took me 3mths to recover enough to have a semi normal life but I also had other underlying health issues which contributed to the slow recovery. Everyone is different and you can’t rush the recovery. If exercises is making the pain worse, then you should back off. Talk to the physio about it and adjust your regime. Lyrica is the most widely prescribed for nerve pain which you may find is helpful, plus it’s not addictive like endone. You can take it with Panadol and anti inflammatories without issue. Use heat packs regularly and generally just take it easy.
I feel for you xx