I think the trouble with hyperacusis Saira is it makes you frightened of sound.
I am trying to deal with mine without earplugs in the home as in theory things like whistling kettles (which is basically what my 24/7 tinnitus sounds like anyway) shouldn't damage your hearing any further.
I think if you are living in a quiet controlled environment at home try not to stress too much, I know that is easy for me to say.
I still jump when a door slams or my adult kids yell at each other, or a neighbour starts drilling, also things like my hubbies phone sounds totally annoy me, the plink, plink, plink as he does a text, but in theory that kind of noise can't do any more harm. I've had him change his ring tone as well but have worked out they all annoy my ears. I'm surprised he is still here, but he says we will work through this together. Here's hoping.
However if you do venture out then take ear plugs with you just incase.
I had to walk past some deafening roadworks a couple of weeks ago, and ended up making a huge detour as didn't want to risk it, anyone who noticed me must have thought I was a mad woman.
But I noticed all the operatives doing the work were wearing ear defenders, but we the general public are expected to walk right next to it !