I Have COPD, Asthma, And Tracheomalacia, I Recently Had Gastric

I have COPD, Asthma, and tracheomalacia, I recently had gastric bypass because in the last years I've had pneumonia 27 times now since I just had it again this last week and most of them were asperation pneumonia …..do you think that this surgery will actually help??? And these past two week I've not been eating lots of protein like I should have...I tried, but my Dad passed away on June 25th, so been eating a lot of funeral food and then this past week I was in the hospital for 5 days with by-pap and pneumonia again and also a UTI. Haven eating like this these past two weeks screwed up my surgery???? I've also started drinking alcohol because of some depression from loosing my Dad and being in a loveless marriage, seriously thinking of divorcing him after years....What can I do???? I'm so depressed and down and hate feeling this way. I don't have thoughts of hurting myself just really depressed and it getting worse. Help please thanks Kristy K