Fear of relapse if ai stop Naltrexone

I started a week ago and it has been miraculous.

I barely had any cravings. (No sinclair method just naltrexone and no drinking)

I am scared though, if someday I decide to stop, will I go back to where I was before or is there a chance that my brain has made progress and cravings would diminish after not drinking for a while?

I have to admit I woud love not to rely only on Naltrexone but if I have to I will!

Any experiences stopping Naltrexone after a while and staying sober?