Is it smart for a person to represent themselves in a custody increase/change request?

I have been divorced for 6 years, I'm current with all financial obligations, we have had and followed the same court order (with visitation in it) for 6 years. We have "joint custody", children are now 8 and 1. My visitation schedule is Tues night for 3 hours, Thursday from 4 to overnight, and then every other weekend. Ex and I live 10 miles apart. I have 7 domestic incident reports on my x when she has not followed the court ordered visitation, none on me. I want to go to court and request more time, I'm open to any changes, also court order was made for when kids where very young, times are different now. Mostly the incident reports come from my ex interfering with drop off and pick up before and/or after school. We could state that I pick them up and drop them off and remove most all of our interaction and issues, also giving me more time.