Erectile dysfunction. Over this issue.

From the last 3 months I have been facing erection issues when in the middle of the intercourse, my organ lost its strength and since then i am facing a lot of problem over it. 1. I have been suffering from stress and depression from the last 5-6 years. 2. Last year I consulted a psychiatrist for anxiety issues for which he recommended a medicine. After consuming those medicine i faced similar problem but for a week only. But it actually reduced the anxiety as well. 3. To bust the stress, I started watching porn regularly for masterbation once everyday for the last these many years. 4. My sexual desires are at an all time low where even if I imagine something, i don't get that much excited and penis is mostly flaccid unlike before. 5. My testosterone, blood sugar and vit D levels are normal Please guide me over this issue.