Please help my sick plant!

[Kbehan]

Hello stoner friends!
This is my baby... she was doing great, but now the leaves are turning all yellow and brown just as it started budding! What could be wrong?? What should I do?? This is the furthest I have gotten with a plant (after 2-3 other tries... clearly I do not have a green thumb). I REEEEEEEALLLY want this one to make it!!!

[DabberDog]

From what I see in the pictures, you have not just started flowering, and you have late-stage flowering colors.
Is the plant fem/photo or auto? What and how often do you feed? Do you use CalMag? What is your pH? Are you in soil or coco? How old is the plant?

[Allotrope1000]

It appears the yellow leaves are at the top of the plant. A wild ass guess is light burn. Top of plant too close to light?

[Bluey]

More info please

[Kbehan]

I am not sure if the seeds were auto but I do know they were feminized. (This particular seed was given to me by a friend without a lot of information.) I did change the light schedule from 18/6 to 12/12 because it wasn't budding for a long time. A few weeks after changing the light schedule, it did start budding, so I'm assuming it is NOT autoflowering. I'm not sure what more information to give... I am fairly new at this... I have been monitoring the PH, which is right around 7 - a little high, I know but I've been adjusting the PH of the water/fertiilizer mixture to have a lower PH to help balance it. I've been using a combination of two fertilizers pictured here. I alternate each watering with these two. The plant does seem to stay moist for longer than I expect and I'm only watering maybe once a week. I have a moisture sensor in the pot and I wait for it to indicate that water is needed so I don't overwater (made that mistake already!).

[Bluey]

You need to read up on a few things.

Start here https://www.growweedeasy.com/basics

[DabberDog]

What Bluey said... for sure! A biggie is knowing if you have an auto-flowering plant, feminized, or photoperiod.
Read the link Bluey sent and keep trying! You almost had yourself some fine-looking dope.

[Kbehan]

Oh no, does this mean you think my plant is unsavable? There isn't anything I can do??
Thank you both so much for your help. I will read the info from Bluey's link. I have more seeds. I will study more and try again. Weed was legal where I am from (Rhode Island, USA) but we moved to Portugal where it is decriminalized, but not legal and it's been a rough 6 months without weed.

[Ckbrew]

I almost never recommend terminating a plant unless it has bugs, mold, or hermie. Grow it out and learn from the experience.

[DabberDog]

Perhaps... maybe...
Read the articles and figure you are growing feminized and have been flowering since you flipped to 12/12.
Stop giving veg nutes to a flowering plant.
Work on your pH and get some CalMag or a substitute. Someone else can make a suggestion if you can't get any.
Figure out what you need, what you have, what you can get, and be real careful about substitutions. Then make a list and a plan.

[Kbehan]

Ok thank you!

[DabberDog]

And for the love of Dabber, don't stop trying!

[Smallgrow]

Follow the advice above. Probably you can’t “fix” her now but you can likely limp her to harvest and get something.
We’ve all been there, keep learning and trying.