This was me a few years ago. If you're in the acute phase of pain, I highly recommend you don't go. From personal experience of other events its not worthwhile in the long-term. I would also recommend you read a book called 'Back Mechanic' by Professor Stuart McGill. He's the world's leading spine researcher and has worked with elite athletes and government ministers to heal their spines. His book helped me return to intense exercise and activity pain-free.
I'd also recommend you look at https://www.instagram.com/p/CnvNIr9hLH0/?ref=Georgina&hl=af https://www.instagram.com/p/CoBG9G4MyF4/?ref=Georgina&hl=af and https://www.instagram.com/p/CoTOadQOmXf/?ref=Georgina&hl=af
Also consider relative rest where you avoid any activity that makes the pain/symptoms worse for the timebeing, avoid being in any one position (walking, sitting, standing) for too long, and take regular rest breaks (lying on your back (possibly with something under your lower back) and/or lying on your tummy letting your lower back sink into the floor with each passing breath) at regular intervals
