Ultimately, I think Bible Plans are helpful and should be used as a guide to stay on track to do what you what to do. Paul says in I Corinthians 9:26-27a, "So I do not run aimlessly; I do not box as one beating the air. But I discipline my body and keep it under control,..." In this life, we shouldn't be casual about our pursuit of God. We are pursuing an "imperishable wreath"!
If the the truth be told, we apply discipline to that area of our life we are most passionate about. Could be work, could be video games, could be golf, could be fantasy sports, could be a lot of stuff. The funny thing is that when we apply discipline to those areas we are passionate about, it doesn't feel like work nor is it a strain. So maybe when I look at my Bible reading plan and feel condemned, stressed and strained, it's not the plan's fault. Maybe my heart has lost some zeal and passion for God? What I need to do is step back, and pray for a renewed faith and zeal and then, like Paul, continue to apply discipline in my pursuit of God.
With that being said, I have enclosed a couple Bible Reading Plan options for you: