First time grower, is all hope lost?

[nabinubi]

Hi Everyone,

First time grower here with a plant about 55 days old.
I've done the usual mistakes, overwatering and wrong PH water and the damage can be seen easily. I've learned from my mistakes and are ready for my next attempt, but before i give up all hope i wanted some feedback if this one can yield something?

My setup:
120x40x40 tent
Clip on fan
Exhaust fan
VIPARSPECTRA P600 LED Grow Lamp 100 W

Biobizz light mix
Biobizz bloom
Biobizz grow

Placed outside in a horrible environment which requires me to have the led on 24/7.
When light was on 20/4 the temp dips to 13-16c in the 4 hours its turned off, humidity skyrockets to 70-80.
When the light is on 24/7 the temp is 19-27c and humidity is 50-65. From what i could gather, it would be safer for the plant to have the light on 24/7 than to endure these low temps

Now heres some pictures of the poor bastard. Ignore the net, i implemented it a tad incorrectly

 

[Captspaulding]

1 turn your lights output down.
2 feed them man.
They want p and k.