Episiotomy question. Scared old scar make second delivery worse!

Moms who’ve had episiotomy with their first kid I need help. I had my son 2 years ago and I had a pretty big episiotomy. Everything seems fine now and we’re thinking of having another. My fear is going through a second delivery. I’ve heard that your scar from the first episiotomy rips and gets longer with the second. Is that true??? Also I’m afraid of prolapse. I didn’t have one with the first but are you more prone to one with the second??? What have your experiences been?