There are some who consider making a regular ‘quiet time’ habit to be tantamount to legalism.
I am far from being legalistic — I am too lazy! But I would argue that not making a regular habit of prayer and Bible reading is effectively spiritual suicide. Going even a couple of days without spending some time reading from the Bible and honestly praying results in me becoming noticeably more worldly and less Christ-focussed.
As I spend a longer period of time not praying as Jesus taught us, my desire to do so decreases, along with my motivation to read the Bible. My thoughts are less taken up with God and more with my own anxious concerns.
Don’t get the impression that I spend hours on my knees praying, read ten chapters of the Bible a day and memorize entire gospels. Often my time with God is a couple of chapters read distractedly while feeding breakfast to myself and one or more children. My prayers look strangely like I am ‘resting my eyes’ (sleeping!) and are fragmented by random stray thoughts.
To remind myself to pray I have photos of people I want to pray for on my bookmarks in my Bible — simple, but it really helps ensure I pray.
And what I have found is that even an interrupted, somewhat sleepy time dedicated to seeking God and His will really does make a difference. A difference which is very noticeable if those times are not happening.