When we commit ourselves to reading the word, the devil's habit is to do anything and everything to cause a distraction: the phone ringing, cold or heat, headache, tummy ache, urge to go to the bathroom too often, hunger, thirst, discomfort in your position, itchiness, noise, your cat lying on the bible, your dog whining or yapping, the neighbour's animals or kids or music making noises, etc, etc, etc!!! Believe me, I've experienced all of them and more!
When you make the decision and speak it out loud that no matter what, you are going to read from God's word today, come rain or shine or anything else---and give the enemy fair warning---he will relent. We have authority over the enemy, even when it is our own subconscious rising up against us!
Take that bull by the horns early on in your life and you will have beaten it solidly once and for all! It is obvious the enemy knows you will be built up spiritually by whatever you read, because that is one major way God speaks to us, and packs good things into us. The enemy will do anything to keep you from concentrating on what God is wanting to say to you. Don't let him!