The "stops" in the middle of the sentence.

[Aikuzo]

Hello,

I'm stopped working on my grammar for about a year but now I'm back.: ) Got some question again:

"So lets say you are trying to research to be a very powerful knight... first find out what a powerful knight looks like."

I'm kind of confuse about what should I do whenever I wrote sentence that involve that "stop" kind of thing like in this sentence the one after the word "knight". Normally I use "..." whenever there's a stop but when I write article I think if I use it a lot it kinda messed up what my article looks like. Can I just go ahead and write

"So lets say you are trying to research to be a very powerful knight. First Find out what a powerful knight looks like"

Or can I just go straight like "So lets say you are trying to research to be a very powerful knight first find out what a powerful knight looks like" and still consider this as grammatically correct?