Alcohol for dysregulation due to positive emotions?

Recently I have had multiple positive experiences and good news in my life. Finally I can be optimistic about my future. The problem is that I am used to coping with alcohol for negative feelings but for a few years I have noticed that my first reaction to any overwhelmingly positive emotion is also to get drunk. I feel in the moment that my feelings are too much and I can't deal with them so I need something to tone them down. But I also still want to feel them.

I haven't had the best last two years, it was crisis one after another (mostly due to outside circumstances). Finally it looks like I can leave those behind. Also sometimes I just get too emotionally overwhelmed when I feel that someone (a stranger) does something nice and cares about me and I am too moved by those feelings. (But I am also always afraid I give these instances too much meaning so there is also always a fear that the good emotions are not real. Which is usually true, they are strangers in the end and those interactions are much more meaningful to me than to them.)

So I guess my question is, can anybody relate to this and what skills can I use to not look for alcohol the first minute I have bigger emotions.