I am brand new to plants and I just recently picked up several close to a month ago. I’ve repotted them today and they all were in desperate need of it. Most of them also had fungus gnats so I soaked them in a hydrogen peroxide mixture, put them all in new pots with new soil as well. I added sticky traps but what do I do now? I noticed also a couple of plants had spider mites so I’ve isolated them from the rest but am needing further advice as well. Pic of my collection prior to repotting