I don't draw the line anywhere between being frugal and living my best life, as they are one and the same. Frugal isn't the same as cheap, but to an outsider that doesn't know my income, my value and ethics framework, my personal ideas of fun, and my overall life missions I guess I could look too frugal or maybe even cheap.
For example, I don't buy new clothing, ever. And I mend everything until it is only fit for a rag bin. This looks cheap, but it brings me joy. My clothing values are function over form, and not contributing to the many issues with modern clothing production and quality. I could care less what others think when they see me. I love looking at the variety of multi-colored patches on my favorite pants. I always change up thread color just so the mending shows because it makes me happy to see it. I get clothing from thrift store, from hand-me-arounds, or via my local free and gift economies that I participate in.
If I need or want something, I rarely go out and buy it. Part of the fun of ownership for me is anticipation of ownership and finding creative solutions for acquiring, just as much as it is in the actual possession of the item.
One place I can easily splurge is dining out. But when we do it too much I stop getting the dopamine hit from it. So now we plan for no more than one meal out a month, and instead come up with creative alternatives like picnics or potlucks. Now when we do go out about once a month it is exciting and easily 10 times more enjoyable compared to the days of doing it every couple of nights. Minimize dopamine hits and then even a small hit will be amazing.
I guess what I'm trying to say is that my best life may look spartan and miserable to you, while yours could look stressful and complicated to me. It's very individualized.