I know am being stubborn and stupid
Well, that's the first step to recovery.
It's all good, man. Didn't mean to insult you. But it needed to be said.
Now, having said that, I have to say that I've loosened my stance on a lot of things that I was very rigid about. If you (think you) need a booth, and you can make it work, then go for it. Maybe just having one will give you the confidence to sing better, in which case it's worth having just for that reason alone.
I've come to the conclusion that it's talent first, ears and mixing skills second, and the all the technical stuff last. I've heard people make great recordings, only to be surprised when they said it was done in their bedroom and they never even heard of "room treatment". But their instrument/voice sounded good, and they had great ears to allow them to mix what they had properly.
On the other hand, I've heard recordings by people who are the first to talk about proper room treatment, top of the line gear, and all the technical stuff, etc...but their recordings are horrible. Either because they can't play/sing well, or their songs are shit, or they have horrible ears and judgement. So, basically, nothing frickin' matters more than a good song recorded by someone with a good voice/instrument, mixed by someone with good ears.
So.....good luck with whatever you decide.