It helps to understand that allergies are a form of autoimmune disease - basically, the body winds up turning on itself in order to "protect" you from something that's actually not harmful. Once you accept that there's nothing "wrong" or hazardous about the pollen, and that your body is reacting to something that mine isn't, you can get to the root of the problem. We often think that "autoimmune" refers to MS and lupus and rheumatoid arthritis - and it does - but allergies are another version of the same thing. Go to the other end of the spectrum, where cells go wild and take over, and you have any of the many forms of cancer. This is confirmed by endless clinical trials and studies who showing that strengthening the immune system, reducing inflammation, and improving the epigenetic cell function leads to better health.
Science has 2 roles: treat the symptom, and prevent the reaction. In preventing the reaction, you have 2 choices: avoid the trigger, and strengthen the body's immune system so the reaction doesn't occur (or occurs less severely).
The next thing is to decide on your own priorities. You've done some of that, for example, by saying you aren't closing your windows or never going outside. The next thing is, decide what you're willing to do. You can do all the shots and try to manage the meds in combination or in sequence. My husband did both for years, with poor results; he also did the surgery. I skipped the shots because of the outrageous expense and the limited success rate. You can also focus on massive elimination, which is what a lot of diets do (gluten, nuts, dairy, you name it) or by staying indoors and having clean rooms etc. For some people, that's easier.
The other option is to recognize that what you do to eat healthy is not nearly enough - and medical science confirmed this over a decade ago when the AMA said that virtually no one in the US is getting what they need. There's just no way - our foods have far less in the way of vitamins, minerals and trace elements (read: nutritive value) than they did 30 or 40 years ago. This has to do with farming techniques, pesticides/herbicides, rush-to-harvest, and storage techniques. A lot of medical professionals followed this advice (doctors, nurses, nutritionists supplement at a much higher rate than the average American). However, most MDs, RNs, PAs etc. also have taken few up-to-date nutrition courses so they just say "eat healthy"! Contradictory, isn't it?
I was like you my whole life - miserable spring (trees and early pollen), miserable fall (ragweed), miserable summer (freshly mown grass, chlorine in pools), miserable winter (dry air, house dust). I had sinus infections a lot, and chronic bronchitis (3-5 cases per year, 4 weeks at a clip, no sleep, horrible headache from the coughing). I took the prescriptions and the OTC meds, got all dried out, felt drowsy. Later on, when Neti pots came back into fashion, I used those. Spent a lot, was still miserable. Some years ago I learned about epigenetics and immune system support, and now I'm off all my meds, haven't had bronchitis or any antibiotics, and can sleep at night. We had a miserable winter in Boston, and a late spring - all the pollen & trees sort of "ripened" at the same time. So I did have a couple of days when I wanted a little more help - I'd say over the past 6 years, I've had about 8 days like that. I eat everything I want. I've never heard anything in any of my training or professional development that says eliminating moderate amounts of beer and wine (or wheat or dairy or anything else) does anything to support the immune system.
To me, that's easier than all the elimination and shots. I'd rather deal withw the cause than try to treat symptoms.But everyone needs to chart their own course. Whatever you choose, do it right.