Posted by SillyOldDuffer on 20/02/2021 17:59:45:
Sometimes I'm the statue, sometimes I'm the pigeon…
Dave
Well that image certainly worked for me Dave! 
BR – stick with us, we are a mixed bunch and the world would be far less interesting if we were all the same.
I stick things on here that I hope folk will find useful and interesting. I also know that there are others with much better/more specialist/more interesting/more knowledgeable/more experience etc (you name it) things to share.
All you can do is talk about what you know and do and hope you don't seem too silly to some of the superior intelligences that also frequent here. (Not being facetious – there are some seriously clever folk here).
I like the topic diversity. Some things are way over my head or (frankly) ones I'm not that interested in but I'll still often look at them. I might not have ventured into 3D printing without seeing some of the 3DP posts here for instance.
As Dave suggests, you just have to talk from your own perspective and hope you don't look too silly (too often). You have to post tales of your small steps forward (or back) and hope that (if no one comments) it's because they are awestruck by your ingenuity rather than dumbstruck with your stupidity.
Fortunately though, most people here are very kind. 
Regards,
IanT