@happytobehere
Hi
You will be getting a ton of good advice on this question.
First, I am profoundly hard of hearing and the last time I traveled alone was before Covid but I have traveled since then with family and realized how extra difficult it is to navigate an airport with masks.

First, Notify the airlines at least one or two days before you travel to tell them you will need assistance every step of the way...airlines have policies in place for physical disabilities ...I know this is different.

Second...use your phone to download some speech to text apps....I rely on Live Transcribe (for Android phones only) and Otter especially with mask wearing. I don’t know how tech savvy you are but it doesn’t matter. Do that now and play around with some apps.
Third...make a handheld sign or small stick on sign to wear telling everyone you meet that you are “deaf” and read lips...use the word “deaf” ( with a small d) as I find it gets people’s attention better.

Fourth...for every encounter along the way...ticket agent...screening people etc., hold up or point to that sign and verbally tell them you cannot understand through masks. When you get to the gate...go immediately to an agent and let them know you will not be able to understand boarding announcements. I was let on first with other people with disabilities once when I did that. They may ask you to stay nearby and hopefully they will remember you. If you can, and you see someone friendly looking, ask them if they wouldn’t mind listening for you. Tell the hostess when you are seated that you need assistance with announcements etc.

The thing here is to be extremely proactive and use available technology. Tell everyone..even the people at the food counters, that you need assistance. Don’t be embarrassed...it’s not your fault. TSA agents encounter all kinds of people who need assistance. And, of course, you will let on the plane. You will find that most people are kind and want to help.

Enjoy your time away and you will have a stress free time on your return flight. I am sure I have forgotten some tips.

FL Mary