punctuation - Should I keep the ellipsis in this sentence?

I was wondering if I am using the ellipsis properly in this sentence. If not, what punctuation should I be using in place of the ellipsis?

"This trick proved to be difficult at times because, as the years progressed, my tics became more and more obvious . . . People were noticing."

Please include any other advice you have for me. Thank you!

Answer

I would use an em dash.

My tics became more and more obvious—people were noticing.

or a colon

My tics became more and more obvious: People were noticing.