Anyone else? Give yourself Grace

I am currently learning new skill. I am so frustrated with myself because I feel like I am not catching on like I should and my friend is the one teaching me. I am giving myself no grace and need to not be so mad at myself. I'm just worried she's going to get frustrated as well and decide this isn't worth her time. While Ray was patiently sitting with me tonight I was not super nice to him not mean just complaining about myself. He was so nice and kept telling me I would catch in eventually it doesn't happen over night. Why do we do these things to ourselves? It really is something I want to learn and that I know I can learn. But I'm not a spring chicken anymore. Believe me I am totally feeling the "you can't teach a old dog new tricks" vibe right now.