Hello and welcome Sled Chick...

Perhaps you are answering your own question, Sled Chick.
Something in your heart must be leading you to ask it.

madisgram is right about it being your call.

I "functioned" while drinking/doping for years before I stopped doing both...
There are quotation marks around functioned because in hindsight I realized it was a form of denial for me.
I felt as long as I was able to keep working--and playing--that my using wasn't that bad. In reality, I was barely getting by and would not admit to it--after all, wasn't I still working, etc.?

Function has an array of meanings and we can use any number of them to justify our continuing usage.
Out of hand a few times a year is also familiar to me. They may have been few in numbers but they were big on the affects on me and those around me.
I felt shame and guilt about those times...they were very public so I could not hide them. I did however do my best to laugh them off...

My best wishes for you to look at your situation with honesty and courage,
Cap