The question to ask after relapse is, "What do I know now that I didn't before?" If the answer is nothing, then it is doing the same thing over and over and expecting different results.
It took me three times before liberation from alcohol. The third time found me meditating deeply on the errors of my ways and just what recovery is all about. Clue: it's not merely about quitting drinking. The alcohol was but a symptom for me.
Best to you...
warren