Specifics of nightly prayer

I typically read the Bible and pray every night but over time my prayer has become long and very structured and in some ways forced with me saying the same things every night and the same established prayers IE. Our Father Hail Mary Oh my Jesus etc. because of this prayer typically takes a long time, feels forced, and frustrating. I have no issue with the time, but if I were to make my prayers at night shorter and more relative to the day would that take away from praying as a whole? Would it be selfish or disrespectful of me to pray in total less that way? I just feel that i say the same things and it doesn’t feel like a conversation anymore, more so a burden. But should I continue on this commitment or not?