Frankly, you need to have your pests identified before applying anything. It's of little benefit to do this or that or apply something else when you don't know who the enemy is. In the future, please know that toxic pesticides, such as your Sevin and Ortho, should not be used inside unless they are specially labeled to be used in such a manner. Even at that, I'd strongly advise against it. If you google the names of the assorted pests you've heard of here or elsewhere, you can find lots of images for identification. I suspect that your 'green, stationary bugs' are aphids. Mites are so small that they are difficult to see with the naked eye, even if you know what to look for. However, it is highly possible that you have both. As far as the fungus gnats are concerned, I do not see where you mention the presence of any annoying adult gnats flitting around. The adults are usually present when larvae (in the soil) are a problem. Fungus gnat larvae (maggots) are opaque, worm-like critters. You'll also find images of them on line. Novice, you should not use your pure neem oil on your plants. Unless a product has directions for use, you might end up harming the foliage...or doing no good whatsoever. You need to use that neem for whatever purpose you bought it for.

In the absence of pictures... Insecticidal Soap treatment until you figure out what you have. You can buy it but if you have dish washing "soap" (not detergent or liquid) you can make your own. Mix one or two TBS soap to one quart of water and spray the plant and bugs daily. It should keep them at bay until you figure out what they are. Bill

I need help find out what kind of pest is the one killing my Mint plants. Help please?

Little green worms that are probably on the underside of your rose leaves munching...(size varies from tiny up to a inch long)... Sawfly larvae are called Rose Slugs....Least toxic spray would be safer insecticide soap or similar... Spinosad is very effective just be careful and follow directions as it can kill bees... Some people pick them off there rose leaves and squish... Our curled rose slug here are mostly found on top of the leaf... But usually other types are found UNDERNEATH the leaf... Here's what our more mature rose slugs look like: The wasp eats them so he is a good guy in my book....lol