I've been programming for 40 years now and can tell you that I'm still learning. Embrace it! You describe keeping up with technology and keeping up with programming (switching languages/frameworks, etc) is no different. I'll also tell you that it's common for me to look at code I wrote six months ago and hate it. That used to concern me but I now realize that it's because my craft has improved in those six months.

Finally, others will surely tell you if you're a horrible software engineer. If you're getting constructive feedback from peers you consider superior to yourself, that's a sign they see something positive in you (why would they invest in you otherwise).

TLDR; Classic imposter syndrome

EDIT: Unless you've purposely misspelled your handle here, please, please, please make sure your spelling is correct in your software. It drives me nuts to search on a term I know should be in the code and fail to find it because of a transposition or homophone error!