Replying to Cloth knee braces - for the "older" heads

So I didn't train that much this year to strengthen my legs and knees for the season, and I've definitely been feelin' it after lapping the park for a few hours. This is really taking my confidence down cuz I'm not trusting myself nearly as much. I feel like wearing some sport type braces might help out but have never done it before.

Has anyone worn the cloth/spandex braces when their knees were feeling a little weak? Any recommendations??