Most people’s first fursonas are just themselves ++. I don’t think that is a bad thing and would recommend that’s where you start. What are your interests? What clothes would you where if you didn’t worry about social norms and body type.
Now for the visual representation of your fursona. You said that you have a species that’s good. The next thing I would figure out is color palette. I would recommend coolors it’s a website that uses color theory to help select colors that work together. Then I would look for f2u bases on furaffinity and use a photo editing or drawing software like gimp or krita to then color the fursona. You can also use an app like fursona maker to create a Sona. What ever you try save multiple copy’s along the way and play around with the colors and patterns you wanna add. It’s ok if this is turns out not great just aslong as you think it communicates your sonas vibe you can then find an artist you wanna commission to make a proper ref sheet
IRL exhibitionism should be done in low risk or safe places like nude beaches, private land, swingers clubs. It’s not ok to force your sexual acts on others who are unaware. Exhibitionism is one of my favorite kinks but you need to be responsible when acting on it.