Do I have self control or not?

I was drinking about 6 cans of cider for a week and a half, I didnt notice I was drinking that much until the cans stacked up and I realised woah this is a lot. I also gained a bit of weight and was more lethargic than usual. So then I decided to completely stop drinking which persisted for a week and a half, didnt crave or or think about it, but for halloween I decided to go out for drinks and now I’m back to drinking a lot of cans of cider. I today realised its back to being a problem again so I’m deciding to stop completely. In the past previously before these past few weeks I went months without alcohol and not drinking, and didnt crave it or think about it, it was an active decision to quit when I thought it was getting to be a problem and I did it when I wanted to. What I’m questioning really is, do I have self control or not? It seems when I want to quit I do and don’t make excuses, but whenever the circumstances calls for a little drink I go back on the binge until I realise its becoming bad again. If I wanted to quit now for good I probably could really since I’ve went half a year without alcohol until it was suggested for an event! What do you think? Im 22 and only started drinking 4 years ago