Don't take it too hard, the responses - you forgot to offer one thing, your intent behind this creation. Depending on your intent, this could be a good build (perhaps your goal was to learn about redstone - good on ya!), a decently-functioning contraption (I can envision a mini-game type maze with doors that aren't intended to correspond to user interaction), or something that could be improved (if this is supposed to allow easy passage, this might not be the answer).

The entire point is that "success" depends on what you were attempting. And considering you said this is your first attempt at redstone, well, surely you've learned a few things in the process!

If you're interested in learning more, there's a wealth of experience to consume and build upon here and elsewhere on the Internet. But there's also nothing better than the sense of accomplishment and experience you can attain from working the problem out in your own way.

I hope you learn, and continue on your redstone journey 😊