Critical Syn-Ganic Grow

I'm not 100% sure I didn't stunt my seedlings progress by overwatering, but only time will tell. Color and structure of seedling looks healthy but I'm not satisfied with the overall growth. The seed did take a week to germinate so I very well could be still on week one; if so then she's right one track. So far there are two sets of true leaves on the seedling with more growth everyday. I started a second seed just in case I did stunt my first plant, not only that but I thought I could retry my hand at watering to see if the plant will grow any faster. I'll be keeping my eye on the plants for the next week to see if I've made any progress. This week I fed a very small amount of Espoma Tomato Liquid Fertilizer (about a 1/4 of a tsp.) along with some General Hydroponics Rapid Start ( a little less than .02 tsp.) diluted with rain water (pH 7.0) and some compost tea at a ratio of 1:3. It's been a few days since I fed and no issues as far as I can tell so I can only assume that everything is fine, not optimal mind you, but none-the-less fine. I'm taking a much more laid back approach to this grow since up until now I'm afraid I've been overdoing, and overthinking everything only to end up with dead plants either because I used too much water or too much fertilizer. I want to enjoy the grow with some level of peace otherwise I don't even see a point in using cannabis. Aside from feeding, I also amended the soil with some mycorrhizae (4 tsp. approximately 1-2 tsp. per gallon of soil) and a handful of earthworm casting, then on top of that I applied a 1/4 inch thick layer of leaf mulch I gathered from my backyard. As a little experiment I also threw in 4 worms from my backyard into the container (3 gallons; plastic) just to see if they'd keep the soil loose and aerated at least until the roots have had some time to fill out the container.