Since I already stated that cleaning up your environment by ditching & switching all harsh chemical cleaning products, personal care products, and synthetically scented "anything" (including air fresheners, candles, dryer sheets & scented laundry products, etc.) is hugely important, let's start there.
Plant based Cleaning products and personal care products are available, but you have to read lots of labels to know what you're really getting - and some of those products leave a lot off the label by hiding it under "proprietary recipe" claims.
My top recommendation for cleaning up your home environment is using the plant based Thieves line! They've got you covered on all fronts! Thieves Starter Bundle