I’ve been faking my timecards at word adding hours

Last summer I was running late to work so I decided to wait until the next day to punch in on time for that day instead for letting the timecard show I came late. My boss never checks the timecards during the week but on Friday he looks to see who was late and who left early when he figures out out our time for the week to write us a check. The machine only punches the time and not the date so its easy to wait and just do it the next day. Later after I saw how easy it was I started to add more time on my punchcard so I can get paid more money. I justified I as I felt that I’ve been due a raise for a year now. Now I starting to feel bad about this.