How long to recover from severe pneumonia?

A little overview. I went to the emergency room with very severe back pain and shortness of breath. My gf drove me to ER because i was in bad shape. I couldnt hardly walk becasue pain was so severe. They did a CT scan and chest Xray and found out I had a lot going on so they admitted me. I was in hosptial for almost two weeks. It turned out that I had very severe pneumonia in my left lung only. I also had a cavitary lesion and pleural effusion(a little more than half my lung was full of fluid). To top it off my lung had collapsed. I was in so much pain it is hard to describe. They didnt wait long before i had to have a chest tube inserted to drain all the fluid and to help reinflate my lung. I had the chest tube in for around 9-10 days. I was hit hard with strong antibiotics. They sent me home after being in there for about 14 days when the cavitary lesion was almost resolved and most of the fluid was out of my lungs. When they sent me home they told me the pneumonia itself had gotten a little better but was still pretty bad. they switch to a pretty strong oral antiobiotic called augmentin for 20 days. I have been out of the hospital for six weeks now. I only just went back to work 3 weeks ago and started slow and worked my way back up. my energy has gotten better each week but i would say im at 60-70 percent. i still get short off breath sometimes though and still have to deal with some rapid heartbeat. Ive been told by 3 different doctors that im somewhat lucky to be alive. This might be better answered by a physician but since im not a 100 percent after 6 weeks, should i realistically give it another month or two considering im only 28? this story might seem kinda crazy but its the gods honest truth and any helpful answers will be aprreciated. I will pick a best answer!