I noticed you just joined the forum.  I hope you stay around to learn and contribute.  We are basically a friendly, open-minded group who love to sew.

To answer your question, I Googled "how to sew perfect ruffles".  Here is the link to the search results.  You will see several articles about this topic that should help you.  i hope you share your project with us.

Good luck and please come back again!