One other thought:
I've had loads of fun in the over three years I've been sober.
A LOT of fun.
And.... none of that fun landed me in jail, ended with me vomiting violently, left me shaking and unable to function, cost me any relationships, left me in crushing debt or stuck me in a quivering pile of shame.
I can't say the same for the 'fun' I had on booze and drugs.