Asthma just keeps getting worse

I was born with asthma nothing new, I was on a nebulizer for a while after I was born then went on a daily dose till about 1st grade then just needed a rescue inhaler now and then. Then finally I just didn’t need it, I felt tightness here and there when there smoke or I was working out but once I rested or got out of the area that caused me issue I was fine. Then about 2 years ago I moved from nor cal to so cal with my husband for work, and about 6 months after living here I needed my rescue inhaler and after a year I needed a daily dosage again. Now two years of living here, I need my rescue inhaler and rescue inhaler daily and I still have issues breathing it’s so tight. My doctors prescribed me the safest medication for while I am pregnant. But all I can think that cause it was the move the air quality is in the 50s here but back at home it was between 35-45 so not that big of a difference so idk. Diet definitely has not changed, exercise is getting less and less due to feeling lightheaded just from walking to much. I just feel lost and I feel like the doctors are no help and the medication isn’t helping either. Did anyone else go thru this ? Did you find relief ? Please any advice I am at my last straw