Baby axolotls not eating

Hello,
My axolotls (who i thought were both girls) unexpectedly laid some eggs while i was on vacation and when I returned they were too far developed to throw away. I have been raising them but I am a first time baby axolotl mom. I feed them micro worms which they are eating but I think that they are not getting enough food. I feed them the micro worms twice a day and do water changes twice a day but they are growing extremely slowly. They are only a little larger than they were the day they hatched and it as been 3 weeks. I thought by now they should be bigger and more developed. I was worried that they were underfed so I bout some brine shrimp and hatched them and I catch the baby shrimp and put them in the tank with the baby axolotls but the axolotls just swim away when ever a brine shrimp comes near. The brine shrimp swim toward the axolotls but the axolotls jump and swim away quickly like they are scared. After seeing this happen I tried some frozen brine shrimp but the axolotls still wont eat those. Please HELP!

Hatchlings need tiny live food, the microworms may not be nutritious enough for them.
The best food for hatchlings is baby brineshrimp, you need to hatch them yourself - there are tutorials on youtube and on here on how to do it.

Just some feedback on my experiences:

I've always used baby Daphnia and culture them myself. When buying bags of Daphnia I put them all in a large tub with added dechlorinated water and keep them on a window ledge so the tub gets sunlight and algae begins to grow to give the Daphnia a food source(you can use pellets as a source of food also). Changing some of the water weekly. Then I use a plastic syringe to suck out the smallest of smallest Daphnia avoiding the larger ones. I've always used this method without fail but it depends what food source you have access to and what method you prefer.

Here's the guides for the baby brineshrimp and daphnia:
Daphnia
Caudata Culture Articles - Microfoods

I did hatch them. They would not eat them and were scared of them and swam away from them.

Try daphnia then?