I am going to do this along with taking a plastic container and drilling holes to fit qtips in so I can clean her and she can't kick or bite. She's really spicy, so hopefully I don't stress her out too much!your tarantula is still small and young. I would not wait and get it in a tiny catch cup with holes. You can then attempt to remove them one by one.
there are a few links in this thread that will provide you with tips on how to do this.
the longer you wait, the longer they have to breed and spread.
personaly, id make a new enclosure, so once you have removed the mites, you tranfser it into something clean.
Then you clean and disinfect old enclosure, and make it new again. So if more mites still show up (because of eggs), youll have a new enclosure ready and the cycle will keep going.