What to mix with truly/whiteclaw/hard seltzers to make them more “potent”?

I usually drink 5% trulys, drinking straight hard liquor makes me nauseous but I have to drink at least 4 of the trulys to get just a light buzz going for a couple hours then I want more but my stomach gets full too fast from the four 12 fl oz drinks… I feel like: in theory I could drink like TWO or THREE instead of FOUR and just sprinkle in a bit of vodka in them to raise the alc content and not get too full while drinking less liquids and getting more alcohol while getting enough liquid to stay hydrated from the low alc trulys? What would be the downsides besides the obvious alcoholism? Or what would work better than vodka? Trulys are made with MALT liquor so Idk what could mix well with them (I have to admit I know nothing about alcohol mixing and what goes well with what, im hoping my fellow alc bros can give me some insight or anecdotes to give me an idea of what it would be like)… I just drink whatever doesnt taste too strong and can get me “there” if you catch my drift. I guess mixing a bit of vodka with malt trulys works i just drank 3 trulys and mixed the 4th one with a bit of leftover vodka i had but if theres anyone out there that can give me some tips to not be nauseous/dehydrated/full-of-liquid-in-my-stomach afterward I’d really appreciate it. I can’t drink straight hard liquor(vodka) without getting sick, I need something to mix with the trulys. Right now i usually drink 4 in the day around 1pm and another 4 at night around 10pm. I just finished my first 4 for the day so I wont be drinking until night. I drank 3 trulys without anything and decided to add a tinyy amount of some absolut vodka i hade left and it seemed to have made it hit better, I’m just worried I’ll be dehydrated(which would make me nauseous later when I eat dinner) is vodka the way to go or should I mix them with gin or is there something better?