Is it bad to do the same lifts everytime I work out?

So I'm trying to bulk up muscles. I'm bench pressing, doing squats with 2x45 weights on each hand (don't want to take the bar and weights off to adjust the bar between bench presses and squats). That takes care if two power lifts. Then I do some bicep curls, I already have muscular legs but need to bulk up my chest and arms. So I do 3 different lifts I might do a 4th thy being shoulder presses, as the 3rd power lift. I take a day in between to rest.
Is it okay to do the same general muscle groups/lifts everytime I work out? The squats I do because it helps release testosterone, only thing I see not being worked is my upper and lower back.
Is it bad to do the same lifts everytime I work out?
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