What I want to say is "我是一个踏实的人", but I am not able to think out an accurate word or phrase to say that, thank you!
踏实 seems to have two groups of meanings:
- dependable; sure and steady
- at ease; free from anxiety; having peace of mind
- practical; realistic; pragmatic
When it comes to describing people, I'd choose "dependable" or "down-to-earth" depending on which meaning you need. If you could provide some more context, it would help in choosing the best word.
The word you are looking for is "pragmatic"
"我是一个踏实的人" - "I am a pragmatic person."