She always makes fun of the machine whenever I'm sewing saying it's sounds like Grinding Engine.

🤣🤣🤣🤣 I couldn't stop laughing, too but that's not good of her to sell such machine to you.

I hope your Uncle recovers soon to support you more. I like your zeal to get a new machine, plus already having a timeline which will ace your motivation to work hard. May God help you achieve that.