As an engineer I'm afraid in the age of AI all the easy ideas have been found / lots of companies are working on. It's the hard ones we all know that seem to be intangible. I am still struggling to make things on the side and not feel the weight of my inner thoughts self doubting essentially on "is this juice worth the squeeze if anyone can do it?" but I keep doing it out of the supposed fun I get out of making something. Novel ideas do seem hard to come by though.