Help!! Heat stress or moisture stress? Or both??

It is my understanding that when a plant is suffering from water or moisture stress, that the leaves turn yellow, and it droops. And heat exhaustion is accompanied by drying tips, drying edges, and light brown burn spots, I have a plant that is about a month and a week old from seed, is about 8 or 9 inches tall and another shorter, bushier around 7 or 8 inches, have began to droop. They were fine until I cut them off of water for just one day, cuz I read that I was watering them too much (each plant about 1/4 cup a day). They have each gotten about 1/5 of a cup in the past 2 days, and I've sprayed them with water maybe twice. Now it seems they are drooping more than in the first place, especially the taller one. Looks like a weeping willow, and it's making me sad. And I don't believe the drying of leaves is from any nutrient burn cuz I don't use nutrients other than the original fertalizer of natural soil, a little gardening soil, and a little topsoil. Any ideas would b greatly appreciated, I just want to see them pop right back up n stop getting the little white edges n little white spots

they are used to the water, slowly ween them off

If they are used to the water tho then I couldn't of kept the same routine? Or would it eventually of become a problem anyway?

Pics always help but from what you say I guess :-

-: To avoid over watering its not so much how much you water but how often. By watering too little too often you can slowly build up the saturation level of the soil until your suffer from over watering and because its been fine for a while you fool yourself into thinking that your watering schedaule is good and the problem lies else where. I would always water till I get run off and then let the soil nearly completely dry before watering again, this should help you avoid over and under watering which 99% of the time is the cause of droopy leaves.

If its getting to hot this will also dry th soil out quicker which may have been why you were having to water so often and if you had not corrected the heat problem before you changed you water scheduale then the soil may have got too dry thus causing the leaves to droop cos of under watering.

Apart from any damage that my have been caused by the heat stress and over/under watering, the yellowing of the leaves is an indication that the plant is hungry for Nutrients, it may be time for you to start adding some nutes.

As long as you have good PH and you can stabalise the heat to around 78f and only water when the soil has nearlly dried (pot is heavy when wet and light when dry) you should see them pick up within a day or so.

Best of luck

Pics would help

Hi Hayz welcome to RIU.. Krust just gave you top advice! I don't personally believe in a watering schedule because as your environment changes so will your plants needs. Through time you will learn to give to your plants exactly what they need at that time. Pot lifting is a good way to know when to water. When the pot is lighter you need to water, if it's heavier don't water just yet. In the future add pics to your thread and you will get much more help.
Good luck.

How big is the pot? 5 weeks sounds like a prime time for root bound plants if you didn't transplant them yet. Root bound plants will very quickly droop and yellow at the lower leaves. It is in fact a combination of all of the above listed issues; purely because the roots are suffocating, not getting nutes and possibly too much/too little water.