Little tiny worm 😢

Hi all, this is my first time growing a plant, thought it would be cool. My friend game me a seedling about 2weeks ago and it is thriving !! Over the past week I have found 2 very very tiny dark worms on the underside of the leaves. And have a few brown spots on a leaf. I am heart sick . Any ideas to deter little critters??! She is growing outside just took some pics and the spots are looking like they are turning into holes. Please help
Bacillus thuringiensis. It's a soil-dwelling bacteria used as a pesticide for caterpillars. Spray the plant top to bottom with it and the worms eat the bacteria. Then the bacteria eats the worms from the inside out. Need to make weekly applications as to avoid budworms in flowering.