Morning in the minyan

Hello Rabbi, I have been trying for some time not to stand up for the minyan prayer. This effort stems mainly from boredom, lack of belief in the need and necessity, and perhaps laziness also plays a significant role.
I usually get up at a time that suits me and pray only the abbreviated version according to the siddur of the R.S.G. for ten minutes and I'm done.
My question is, from a halakhic perspective, how problematic is this? And furthermore, is there a moral problem with me being a yeshiva student who did not get up for prayers? In other words, does part of my delaying my enlistment include a commitment to fulfill all my religious obligations? Even though I am meticulous about the rules and don't miss almost a minute and even add to them.