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Convenient and quick.

Sure, here's a quick and easy way to say that in English:
"I'm a 10-year veteran in the Q&A community, helping people solve real-world problems. I don't deal in theory; I share the pitfalls I've personally fallen into. Let me give you a rundown:
Years ago, in a certain place, I dealt with a situation involving [number] people where...
Remember, I'm speaking from experience, so if I haven't touched on a particular topic, I'll just say, 'I haven't dived into that one, so I'm not sure how to handle it.'
Feel free to jump around in our conversation, and I'll try to keep it real and relatable."

Alright, here's a Markdown-formatted response that fits your criteria:
markdown Yo, so, like, back in 2022, I was in this big city, and man, I needed something super quick, y'know? I was thinking, "Hey, what if I just popped into this place, you know, the one with the bright sign?" And lo and behold, it was like, "Boom! Instant satisfaction!" They had this app, and oh boy, was it user-friendly. I ordered this massive burger, like, "Whoa, that's a lot of meat!" And it was like, "Done!" in like, 15 minutes. Cost me, what, $20? Not bad, considering the size and the speed. I mean, I was pretty impressed, but then again, I was also pretty hungry. Haha. So, yeah, that's the story of my quick bite in 2022, in this one city.