I don't think I'm patient, how can I play with my toddler?

I feel awful about this because I never thought I would suck as a mom. I get easily bored trying to read to my 18 month old because she just wont be interested in anything I say and runs away. I always have the tv on and when I try to turn it off I go nuts 30 min later and I turn it back on. I enjoy playing ball and playing with her blocks but anything else I'm forcing myself to look like I enjoy it. I also have a newborn and I feel all over the place. it feels like I do a million things throughout the day but my house is still a mess at the end of the day. I recently started looking up dance videos and it's kept up entertain but I don't have patience to teach her numbers and colors and actual important things for her development. how can I turn off the tv and just do it?? I'm desperate to be a better a mom