Don't panic!
So you have 2 weeks or less to go.
Drop your temps if you can. Increase your air movement if you can. Mites like it hot, dry, and still. Turn the tables and make THEM miserable!
You can take a vacuum cleaner and suck them off the buds- a 'dust buster' style one is gentler than a shop vac. You can also remove them manually with a cotton ball that has been dampened. Since you only have one plant, and not much time left, that's a good way to do it. Get the undersides of the leaves too, where they spin their webs and lay their nasty eggs.