I'd say you have too much on to cope with at the moment. I reckon that sales for an INTJ (I'm an ENTJ!) would be stressful. And then just dump a bit more stress on by having the family farm and all your starving orphan relatives riding on it as well!
Lighten up!! Yes it IS tough but you don't need to make it tougher for yourself! This was meant to be FUN wasn't it?
I'd recommend EFT, you're welcome to PM me and I can hook up with you privately or check my website. I'm a single mother, who left her well paid corporate job to teach people EFT, and Project management! I know the stress you're talking about, but you need to also remember why you're doing this.
Stress is because one part of us wants to go one way, but the other part of us doesn't.
I worry sometimes that people doing PD think if you have the pictures of the Ferrari pinned up, and the confidence mp3s going that it will all be right. These are only reminder tools! There's a lot of inner work needed as well. And faking it til you make it can also have the "or break it" tacked on the end.
I found that once I'd started on this road that I needed to seriously do some work (I used EFT to do it) on my confidence. My real confidence, inside me. My beliefs about doinging well in business myself, my beliefs about my ability to do EFT, to market my website, etc etc etc..
You're taking on a lot at once, so be easy on yoruself. You're going to learn a lot over the next period, and I bet you don't want to spen too many more days having migraines or sitting in your car.
Use your affirmations or intentions, and listen to the tail-enders. You'll know them, they start with "You can't do that... " or something similar. Check my doc
Positivity Part 1 to see what to do with them. I'm happy to help if you want a hand (with EFT, not your sales!).
Joy to you
Hazel