(Concern) Gum exposure, gum care

In the past, while undergoing cavity treatment, I experienced severe damage to the gums of another tooth, possibly due to difficulty.

At that time, my gums were severely receding, making it difficult to eat properly. The hospital provided free gum treatment, which helped a lot, but since then, the gum roots have been slightly exposed. When I am not feeling well, I sometimes experience sensitivity.

Since there haven't been any major inconveniences in daily life, I didn't particularly visit a hospital, but recently I've been under a lot of stress, to the point where it started affecting my health, so I'm beginning to become concerned.

Certainly, receiving treatment at the hospital definitely speeds up recovery quite a bit, but the costs must also be quite high, right?

Since other treatments take priority, I am delaying dental treatment a bit. How do others take care of their gum health??