Help me out – advice

People, help me out with this. I don’t drink regularly, in a daily basis. But in the occasions I drink, I don’t know how to stop. I know I cannot drink too much and that I need to stop before getting too drunk, but during the process of drinking that resolve goes away.

I know that there are people that can go out partying, and that are able to stop or to pace before getting too drunk. Do you have any tips on how to do it?

Thanks!