Secret drinking, sex, and moderation.

I'm a 23F, and I've been drinking mostly socially (2-3 times a week) since before I was 18 (European, lol). Occasionally, I've also had a drink or two alone at home.

About three years ago, I started associating drinking with doing things I wouldn't normally do sober (nothing illegal or outrageous, just stepping out of my comfort zone). Since then, I've built up my tolerance to the point where I need to drink a lot to feel a buzz. Other than my drinking habits, I'm totally functional—good grades at uni, accepted into a master's program, and I have decent relationships with family and friends, though I'm on the shy side.

Now, I'm in an otherwise happy relationship with my boyfriend (23M). We spend a lot of our time together at his place, ordering food, watching TV, and having a drink or two. The problem is, most of our intimate moments happen when I'm at least a bit tipsy. I often overpour my drinks (which I prepare in the kitchen) or sometimes even secretly drink straight from the bottle while he's in the bathroom before we have sex. We've only had sober sex a handful of times, and I didn't initiate during those times.

Recently, I had a drunk episode that made me want to cut off alcohol completely. A few friends were over at my house, and after they left, I continued drinking the leftover drinks. I ended up throwing up, which has only happened 2-3 times in the past five years. This made me rethink my drinking habits, but what I'm mostly worried about is my sex life with my boyfriend. I know it's not healthy to only be able to have sex when tipsy, but how can I overcome this when it's the norm I've established in my head?

Do you think it's possible for someone in my position to drink in moderation? Is cutting it out completely the only solution? I'd like to be able to have just one glass of wine or one drink without binge drinking. Is this too far-fetched?

Any advice would be greatly appreciated!