Am I freaking myself out?

Every weekend my boyfriend (21M) and I (21F) like to get drunk and smoke a little weed before we eat dinner. We often play Mario Kart on my Nintendo Switch and take shots between races of Smirnoff Lime Vodka. I normally take ~4 shots a night just to get me to that sweet spot, and I stay at his place from Friday-Sunday night. This has been going on for about a year and a half with a few breaks from drinking here and there. I’ve just been wondering if lately I’m freaking myself out about my health and worrying too much about the effects on my liver and kidneys. I have literally no proof that either of those organs are in bad shape nor am I experiencing any side effects and I rarely get hangovers. My boyfriend told me I am more than likely fine and there’s people that drink way more than we do. I just can’t shake the feeling that something is going to go wrong. Am I just being anxious and freaked out?