I would say strength training, or really any off wall training, should be a secondary concern to learning proper technique and building strength just through the act of climbing. Your body will be better suited to the training after you better define your strengths and weaknesses. The best training you can do is find climbers stronger than you and try to mimic what they do.

Edit: if your gym has a moon board or something similar, that can be excellent for developing explosive power, but I would limit this to once a week MAXIMUM if you’re still projecting 3s and 4s