Erectile dysfunction , depression. This!

I m 25 yrs , 65kg 6feet tall , suffering from ed from past 4 to 5 yrs went to doctors he examine me told the this is due to blood flow give me homoeopathic treatment for 8 month initial 7 days erection after completing my treatment fully was there then suddenly erection was not there few hours before there was erection .but i have 4 day table left which i have not eat so i eat rest 4 day table then erection start occuring , then again from 7th means today morning same problem i m facing some where i was worried about this thing that after 7th i would lost my erection and i was quite depress but today is 7th day and yesterday was 6th day erection was there and it was very firm erection best since treatment i m quite depressed from pass few days bcoz of this