More time.

(Long story)

I am 24 years old, I have two kids aged 4 & 2 and am no longer with their father. We split up over a year ago now due to mental and physical abuse. I left him. I felt bad for leaving him because of the kids but had also fallen in to a massive depression because of the abuse so I thought it was right for me to leave. Because I felt bad for leaving I have aloud the father of my kids to see them nearly every day. Most times when I pick my kids up and ask what they have done and my eldest says nothing but watched cartoons. That's 5 hrs of cartoons on most days. Now has comes time where I want custody to be changed as I feel as though all I am doing is getting my boys ready for daycare, going to work, picking them up and putting them to bed. I would love to have the boys all through the week and every fourth weekend. (I finish work at two pick my boys up at 7 from their father) is this a reasonable request? I want to have some more fun time with my boys.