Hi Jaye,

I haven't used for 20 years now, so it's definitely possible.

While you are recovering it is better not to beat yourself up over a relapse. Just shrug your shoulders, say "damn I stuffed up again" & go on being clean. Because you slip & use once, it doesn't mean you have to keep using.
This is an important skill to learn, because you'll almost certainly slip sometimes in the first couple of years.

There will always be stuff that triggers you to want to use. Try to work out what those triggers are; that will help.