Hi David,
I quit using without any support stayed clean for 20 years and never realised I was tottaly mad (dry drunk) I obessed about everything instead of drinking and using and eventually picked up a drink.
So if you want an answer Yes we do need support but as has been said here you need to discover that on your own, dip your feet in the water of support in recovery
For me AA and NA rocks but hey that just me.
Kevin