#supplier issues

i'm so done with these suppliers rn... i've been trying to launch my vegan ice cream brand for months now and every time i think i've found a reliable supplier for coconut milk, they flake on me or raise their prices lol. i feel like i'm getting taken advantage of because i'm a small business. anyone else have to deal with this? maybe i'm just being too nice and need to be more aggressive in my negotiations... idk tbh