Just got engaged and I'm so sad 😭

My partner proposed to me over the weekend and of course I said Yes! I was so happy and excited and still am....i posted online and I got so many lovely messages but also so many from my family, who where all upset saying I'm ruining my life...all because my partner has schizophrenia. I want so bad for them to be happy for us we have been together almost two years in 27 and he's 32 I have an almost 8 year old from a previous relationship and was single for several years we are super happy together and it's never been an issue until now. What do i Do? I'm so sad that they have reacted like this I didn't expect it and it honestly breaks my heart. They are worried of course as any caring family would be but they also aren't giving him any credit for how well he's doing and has done