Unsuccessful Prep - Colonoscopy now has to be rescheduled. I'm so worried I won't be able to complete the prep again. What can I do?

Was due my colonoscopy on Tuesday.  Started my prep Monday evening.  Was prescribed Plenvu.    Only managed 80 per cent of the first dose.  Half was through the second dose I threw up everywhere.  I had read how bad the prep was but it was even worse than I expected.  The next morning I rang up the hospital who told me it would have to be re scheduled.  The nurse said she would ring back with a new appointment and see about giving me a different prep.   I have still not had a phone call with regards to another appointment and to be honest I am in no rush as this really knocked me for six.  I asked if there was a tablet alternative but she said no. I am just worried I won't be able to complete the prep again.  If so what will happen?  Anyone had similar experience?   I did all the recommended things like chill in fridge, drink with straw and i mixed it with lemon amd lime still water but still tasted gross.   Terrified it happening again.