Help Oliver the cat

Help me with my cat Oliver so i can get him a vet check up as he's been vomiting his food up lately and im in no position to afford his vet bills plus would like to be able to buy him some food and other cat accessories like toys for him to play with, Oliver was abandoned when he was very young and is an orphan like me, im currently struggling at the moment with out a job as i suffer from severe mental health issues like depression and anxiety, i lost my partner who was 3 months pregnant with our first child so Oliver is basically my surrogate child, and i would be devastated if he was to be put down as we both have bonded deeply, i love him and he loves me, with out him i may relapse back into depression and self harm and suicidal thoughts and feelings so he helps me with my mental health issues as i help him with a loving environment but would like to take to the vet immediately to make sure there's nothing seriously wrong with him but i don't have the funds to pay for the vet bills plus it's very hard on me also to buy food, kitty litter, toys, grooming equipment etc, i wou really appreciate any donations at all, any small amount helps plus I'll keep everyone in the loop about the progress of Oliver once I've taken him to the vet, plus if you live in Sydney or are visiting and would like to meet Oliver and Pat him or give him some food and take some videos or photos with him then I'll gladly ablidge as he is such a loving cat with such a big personality, thanks again guys,
God bless