I have worn hearing aids for almost as long as you…42 years.
If you have been wearing full In The Ear hearing aids for a severe to profound loss, it has likely been analog and it has likely been at the edge of it’s abilities.
Look at my audiogram. I am in the moderate to severe range. In the late 80s, I tried analog CIC aids, they were too underpowered for me and I went back to the full in the ear shell. When I went to digital in 2007, it was the first time for BTEs for me since my first hearing aid in 76-78. In 1978, I went to ITEs and was with that form factor until 2007. Since 2007, I have been in BTEs.
Look, if it is vanity, you have a choice… Hear well or not. BTEs are tiny compared to what they once were. I wear glasses too. My hearing aids are Monza Red. Why? So that they are visible if they fall out… and I like it. You have normal hearing people walking around with every manner of headphone, earbud, headset… Really…nobody cares. Listen to me buddy…it isn’t 1965 or 1975. No one is going to be calling you 4 ears.
Now go to that audiologist and have them fit you with something appropriate for your loss.