Guys, can someone help me with these sentences? Where have I left my keys? or Where did I leave my keys? Which one would you use to indicate that you don't know where your keys are?

My English Learning Routine Today, I wrote a text about reflexions and stuff. I liked it, I mean, I really enjoyed writing that small reflexive text, so I decided to write something about my english learning routine. How I usually study, etc. Every day I listen to some English podcasts and, mainly, I watch English vídeos or TV shows on YouTube, or some cool place to watch this kind of content, like Netflix. My listening is not my best skill, but I'm working on this (watching and listening to that stuff, as I said). About my speaking skill, this is not the most importante thing, or it is (yeah, pronouncing the words correctly is also important), but, when you are confident, when you study and prepare yourself for your goal (in my case, learning English), it just happens, you'll just speak and you'll be understood, simple like that (and yeah, I always talk to myself to pratice my speaking, that's a good way to do it, totally recommended haha).

Can someone help me to correct this little text? This is the first time I write something here on italki, so, I'm sorry for my mistakes. =) I bring a tiny reflexion, something I've been learning over time. You would be surprised about how we just need to stop for five minutes and take a look at our own life, take a look at what you've overcome, and then, get the energies and peaceful things that you need and start living with no problems again.