The first is that the weight does not increase: the same 5 kg dumbbells for three months, the body adapted by week six, and everything afterward is maintenance. The second is having no log: without records, every workout is “roughly like last time,” and “roughly” means no progression. The third is cardio “for fat loss” instead of strength training: an hour on the treadmill while in a deficit uses up the muscle that strength training should have built. All three can be fixed in one week: adjustable dumbbells or a gym, a notebook, and cardio limited to walking. For frequency and distribution — how often to train; for progress — training progress.