I've come across multiple fursonas that look more or less like mine, but I still feel like I manage to stand out from the crowd thanks to the small details mine has. Try to see if you could come up with some smaller things (some smaller markings, some accessory, etc) that could be changed/added and that wouldn't require you to completely start over with your suit.
But if you were to ask me, there's no shame in having a fursona that's got a simple design or that look similar to others (unless it was intentionally done to copy someone else species by species and color by color without their permission).
Trying too hard to be "unique" way too often lead to people trying too hard (sure, there are people who pulls it off just fine, but there's usually a fine line), which I personally find to seem rather desperate for attention. Sometimes it's the simple subtle differences that really does the trick.
And also, even in real life, there are unrelated people who look really really similar (People often asked me if one of my friends and I were siblings due to us looking really really similar), so at least to me it'd seem pretty unthinkable that in a world only inhabited by furries, each and everyone of them would be completely unique from the rest.
Might also be something worth considering.