What confuses newbs is the pump. You'll never stay looking like you do right after, not not, then a few days after that; after a workout. When you're working out, the blood pumps into the muscle and makes it swell up. Body building shows have a pump up room where some schmuck has to carry in bands and mats so the guys can get a pump just before going on stage. As soon as you stop, you shrink back down again.
Then as it heals from the damage, it inflames and you get puffy again. That day or two while you're sore is when everyone comments and stares. Then when you're fully healed 4 days later, that's the "real" you. You added some muscle and shape but far from what your pump was. If you're looking daily, there is no consistency.
Once you figure out what you need to do to meet your goals, yes, you can do your 5 of 12 or 8 of 3 or 2 of 30 or whatever and put on a pound of muscle a week or whatever the case may be. But it's a bigger picture than mourning your pump. However, that frankly psychosis is what gets guys big for real.