Start with movements you can repeat
Choose exercises you can perform consistently with control and without unnecessary discomfort. A stable movement makes it easier to judge whether strength and repetitions are improving.
Your program does not need constant novelty. It needs enough consistency to measure progress.
Track the work that matters
Record the load, repetitions and effort of your working sets. When technique stays solid and the target repetitions become easier, increase the challenge gradually.
Progress may come from more weight, more repetitions, better control or the same work completed with less fatigue.
Recover enough to progress
Muscle is not built by adding work forever. Sleep, food intake and space between hard sessions affect what you can recover from.
A productive plan gives a muscle enough work to adapt and enough time to be ready for the next hard exposure.