shopping dilemma regarding clothes

Over the past couple years, I barely buy clothes or when I do it's always from depop or thrifted. whenever I try to buy anything from the mall I get the ick cause I know almost every store is just fast fashion but priced much higher. also the fact that I feel there is so much waste that I hate the idea of buying something once and then never buying it again. if I buy clothes from a mall or company I just feel like a phony and it goes against my whole ideology behind thrifting

however, whenever I have to go to social events, I get anxious and put off buying clothes or like looking online cause I'm too picky. In the city I live in, all the thrift shops are just ugly grandma clothes or clothes that don't suit me. I am open to DIY but I can't sew. eventually I wanna sew but I'm worried about making clothes and wasting fabric because I don't wear it.

the only solution is to obviously stop procrastinating and get clothing asap or thrift something that I can alter and learn how to alter clothing. If this is relatable please either kudos or reply in the comments.