If it’s light, but not sour, acidic, overly watery, or astringent, I might stick with what you have, and it tasting light may just be a function of coming from daily espresso (which I did, too).
That said, something I love about pour over is how easy it is to experiment. If you’re using relatively light roast beans, you’ll struggle to over-extract, so I’d definitely try going finer just to see what it does. It may end up producing less of the flavors that were giving a seemingly over-extracted taste, or at least balancing them with the natural sweetness and body of the coffee.
If it’s a light roast, I might also (separately, so you can identify the effects of each change) try increasing the water temp. I do espresso at 89-90⁰C, but I’ll crank my pour over heat to 98.9, even with a fine grind–though again, only with a light roast. It’s MUCH easier to under-extract that in is to over with a light roast, and the effects of under-extraction can taste oddly similar to over-extraction with some beans.
If they aren’t light roasted beans, grinding finer or going hotter can increase bitterness, so you’ve just got a much slimmer target for a perfect cup, and you may have to accept some bitterness or some lightness to get everything else in line with what you’re looking for. What type of beans are you using, and at what temp? (Also, assuming you have a solid grinder?)