For the look-like-I-train part, two measures that are far less noisy than weight:
A tape measure. Waist, hips, thigh, upper arm, chest. Once a month, same time of day, same conditions. This is what actually catches the thing the scale hides - waist down and thigh or arm up at the same total weight is a large change and the scale reports nothing.
Photos. Same spot, same light, same clothes, same time of day, monthly. This is the one everybody skips and the one that most reliably shows people that something happened. Day-to-day change is invisible in the mirror because you see yourself constantly; four months apart is obvious.
Both are unpleasant the first time and both are far more informative than a daily weigh-in.
A note on the scale if you keep using it: weigh at the same time under the same conditions, and look at a weekly average rather than any single reading. Daily fluctuation of a kilo or more is completely normal and has nothing to do with anything you did. People react to noise and change their training on the strength of it.
And on your clothes feeling different: that is real data, not imagination. It is usually the first thing people notice and it usually precedes anything visible in a photo.