I need some help with my first grow

I need some help with my first grow.
I planted these three critical Neville haze auto plants on May 31st in 3-gallon pots for outdoor growth. The weather hasn't been ideal, with hail storms and heavy rain, and I made the mistake of overwatering them for the first 3 weeks. I've been using Hesi's TNT fertilizer at half the recommended dosage since week 3, twice a week, and I'm planning to increase it to the full dosage. The plants are still very small (about 13cm tall) and have some dots and a yellowish stain. I've been watering them every 3 days and just started low-stress training (LST) on 2 of the 3 plants today by pinning the main stem to the pot's border with a cable. What can I do so they become healthy and big?
I would appreciate any kind of help
Have a great day!

The best way i can help you is to try and lower your expectations. Growing outside is a crap shoot. Since they are autos and sprouted a month ago they are going to start flower anyday now. They will show strong upward growth for a week or 2 and that will be as big as the plant will get. I would be stocked if you manage to get 1/4oz out of each of those. You still have time to plant more seeds if they are more autos

Try not to water on a schedule but by monitoring the dry back process, pick up your pots a few times a day. When they stops getting lighter its time to water.

They spots look like water stress to me but always be vigulent of bugs and molds exspecalely outdoors.

Some of the smaller spots look like insect damage. Probably from Thripes or other flys. Youll hear this a lot and its hard to do on your first grow, but dont mess with it too much. Fertilizers and nutrients should be in very small amounts since you have them in such big pots.
A problem ive had was not watering to runoff. What happens without runoof is the left over salts from consumed nutrients get pushed to the bottom of the grow bag and collect there and start making the bottom grow medium of the pot toxic and the roots want to grow down ward, but they wont grow into that toxic soil and your plants will be stunted.
With those size pots and the small plants, i would probably water once or twice a day depending on your climate. BUT WATER IN SMALL AMOUNTS along the plants drip line until they get bigger. Then make sure youre going to runoff. A large amount of water just gets sucked up by the rest of the soil. Make a little moat around the plant and that will hold your water where you want it

The best part of a grow bag is u can dip in in a distilled water bucket clean it up. Correct me if I'm wrong.