as a lifelong allergy/sinus pain and migraine sufferer i always have to have ibuprofen, excedrin, ubrelvy, zofran, antihistamines, eye drops and anxiolytics on me!! also keep band-aids, tampons and narcan with all the pills juuust in case
you donโt realize you need ibuprofen until itโs too late!! i personally have a little travel pack with a mix of the basics for emergencies, plus i always have a couple dayquil/tylenol packs in secret pockets of backpacks and purses i use often
i use a couple to keep tylenol and what not in my work bag/errand bag/other errand bag (for when i wanna switch things up look wise) so i have some on hand and i donโt need to keep buying those little travel bottles because i can just refill them at home (when i remember to)
since the beginning of the year i've been using elevate (linked). it gives you a few games to do every day and has been a quick and easy way to remind myself i do in fact have a working brain
aside from that, just READ!! i know its a lame answer but i truly feel there's no better way to combat brain rot and increase your attention span. you don't even have to read anything serious - whatever you find fun or interesting, read about it instead of watching tiktoks/youtube videos.