I am so blessed to have studied witchcraft in my younger years so I can incorporate it during my busy life. Especially when my mental illness acts up and I can't focus enough to study short term, I have enough background knowledge to help me be success in my craft still. In fact, the background knowledge such as grounding, breathing exercises, and shielding all help me maintain a sense of stability.
Its also crucial for my identity, which is something alot of people with borderline struggle with. Witchcraft is not all that I am, but it certainly is a huge basis for me and something I am known for courtsey of my scorpio midheaven.
All in all, I'm blessed to have my current skillset. It really does help me.