Choose the right weight
As a novice, you should consider opting for rep ranges for the first weeks of training. As you become more coordinated in your moves, you will improve your resistance and focus.
Increase your resistance resistance training exercises
Gradually challenging your muscles will aid you to grow in your level of fitness and strength. As your training advances, opt for weights that challenge your, while still being able to maintain proper form.
If you notice that the weight doesn’t allow you to do at least three repetitions, and it tires you immensely, then you should consider opting for a lighter one. If, on the contrary, a lighter weight feels too easy, you likely need to increase the weight.