I was able to shop almost entirely second hand where we used to live. Not anymore now that we're mountain/rural. The clothes in local thrift stores are really, really old. Once in awhile I find something but, like you, I dislike shopping and have an attention span of about ten minutes. If I don't find something in ten minutes (or less), I'm outta there. Plus I just dislike even going in. We do have two local boutiques that sell second hand higher quality items. The clothes are really pretty but not my style, usually.
I do keep my clothes a really long time, though, and don't replace things until they're really done. When I'm through with clothes, they are often only fit for starting fires.
I think that's an important part of reducing waste. Keeping things until they're truly worn out. Donating rather than throwing away what you don't use. I no longer hold on to things because I think I should. If I don't use it, someone else can.