Can’t figure out how much to drink

Alcohol is expensive.. for me at least, i managed to score a bottle of blue raspberry svedka (35%.) I drank last saturday and sunday for the first times ever and the most i got was feeling slightly weird, only feeling much after smoking weed the second time. I’m a big guy, and the first time i just had 2 shots which I think is fair that I didn’t get that drunk, but the second time, I had 3 mixed drinks, one being a double, as well as 2 shots over an hour and a half and I still didn’t feel anything significant at all. Can someone help me figure out how to get really drunk without accidentally hurting myself? Would just 5 shots in a row do it, since there’s not so much time in between?