Water fasting struggle (and some questions)

Hey guys. I have done several fasts now over the course of 2-3 months in an attempt to do a prolonged fast (approximately 30 days). Unfortunately I haven't been able to do it for more than 5 days and have done several 3 day fasts. My diet has also been partially ruined now, where I am eating more carbs than before when I break the fast. I did gain some weight but now it has stabilized and I am also not exercising due to the fast.

I am noticing now that my hair is starting to fall out as well, which I am guessing is caused by the malnutrition. Also, I am not Water Fasting to lose weight, but rather detox/cleanse.

I really want to do the 30 day fast, and I am wondering, should I keep trying? Or should I go back to my normal diet/exercise routine, regain my health and nutrients which I may have depleted in the past few months (and thus my hair is now falling out) and then try fasting again? Also, what do you think is causing my hair to fall out? For the past 2 months of fasting, I did not experience hair loss but now all of a sudden it's falling out and I am getting a little concerned.

Thanks, any help would be greatly appreciated!