Bad allergies and asthma....how do I cope and why do I have so much mucus.?

I took prescription allergy medicine for 14 months but it never helped. I didn't start getting bad allergies until I was in middle school and now my nose runs constantly and I also then gained severe asthma where i can not run for more than 2 mins without having to stop and catch my breathe. I am always coughing up flem and though out the year and sometimes it gets flu like about a once every month or so. I am now of simbacort after 3 years of advare and i have taken every allergy medicine on the market. I went to get blood work done and it showed my allergy ratings were extremely high but that doesn't explain why allergy meds dont help me and why I developed such bad asthma. I love sports and I used to exceed in every sport I did but now its hard because i cant exert myself. I recently found out after going to a specialist in the past two years I have cold urticaria where I break out in hives in the cold so now i have to carry an epipen. I am now a senior in high school and I have gained 10 pounds since middle school and now weigh 125 (im only 5ft tall) and I can't really do a lot and I want to get rid of having to use an inhaler forever and if anyone has suggestions I would be more than happy to try them since I am fed up with my current condition of body. I drink caffeine drinking like chi tea and chamomile and mint teas at night to help with the asthma already but its not doing much.