@godisworking101 Not really efficient.
Currently back on a fullbody routine an example of one I picked up a few years ago.
5 week program, first week each set has 8 reps, progressing by adding a rep each week until 12 reps. At end of 5 weeks you successfully lifted your working weight 12 times you add weight the following week and start over at 8 reps per set.
4 sets squats, first to sets are warm ups, 2 working sets
4 sets bench, 2 warm ups, 2 working
4 sets bent over rows, 2 warm up 2 working
The 2 warm up sets are say 50% working set then 60-70% working set. Get muscles ready and essentially these 3 exercises get a good majority of muscle groups ready.
Then
2 sets stiff legged deadlift
2 sets military press
2 sets barbell curl
2 sets triceps
2 sets calf raises
I add planks after as well even though if using free weights properly and acrivating your core properly you should be working it out as well. Then on off days do a hike or swim or other cardio.
Primary focus should be proper form with controlled weight lift aka proper pauses. If your form and or lift is ugly and jerky your bound to injure yourself.