Moving out with my best friend

So I am 20 years old and my best friend is 18, we’ve been best friends for years and we are basically sisters. Lately she has been going through a very rough time at home with her family and so have I as my parents toxic marriage and attitudes are such a weight. We have both been ready to move out for a while now and she suggested that we should get a place together and I am alllllllllll for it. We’re not worried about clashing or anything like that as we’ve been friends for years and have seen all the good, bad, and ugly and we have co habitated a million times at each other’s homes and vacations. We are both responsible for our age, especially with finances, we both work pretty good jobs and know what we want out of life. I’ve mentioned moving out to my parents and my uncle (who’s living with us right now) and they pretty much crap all over the idea..mostly my dad and uncle, my mom doesn’t really shit on the idea. My dad and uncle tells me that I’m just gonna end up back home and that by me moving out to an apartment, I’m just setting myself up to be broke and poor.

I love my parents, I respect them and truly appreciate EVERYTHING they’ve given me and done for me in my life but if our household wasn’t so toxic, I would have no problem staying at home. I just feel like I can’t thrive in this environment and my best friend feels the same about her environment. I’ve done so much research and I am aware of the responsibilities that come with moving out, it’s not a game to me and I’m ready to step out and take on my independence. Moving out is still our goal and that’s not changing but I just don’t want my family mad at me when the time comes and it happens.