[Nair0]

What you are feeling right now is a lack of inspiration, actually extremely common in jobs that require extensive problem-solving, like engineering. Your job sucks so much out of you that there's nothing left for yourself.

You fix this by balancing the output with input: consuming content. Not just digital content, but anything from reading books, listening to other people's ideas and actually even stuff like going out in nature helps. Slowly, you will start noticing ideas you can improve on, or things you would have done better. Your mind starts to wander, you start thinking "what if he used something different there?" or "I bet I can make that more performant". The trick is to stay focused when consuming said content, and be open to improvement, try understanding what you hear or see, not just mindlessly consume. It's a slow process but you will get the hang of it.

One more trick I can give you that worked wonders for me: write down an idea each day. Have something like your phone Notes app, and force yourself to write an idea for an app or something every single day. It can be stupid, it can be something already done 100 times or something no one would ever use. But it's your idea. At some point, you will realize one of those is actually something that you would like to work on and be even potentially profitable.

You're gonna find something, don't focus on the money, focus on the journey. It's gonna work out. Good luck!