Harassment by Co-Op Housing Commitee

Hi, 1)we have an ongoing issue since 3 months where due to negligence on part of the committee members and flat owner above us, there is leakage happening from floor above and has damaged ceilings of the entire house. We complained to the committee but the only response we get from them is that they cannot do anything beyond getting the 2 parties (i.e., us and owner of flat above) together and talk it out to resolve! They are also forcing me to take care of the repair expenses on my own as that's how everyone else does it when there is leakage from floor above. 2) The committee members have also been following unjust practices by designating playing space for kids right outside my car parking and had told that anywhere else will put more cars at risk and outside my car park is only 1 car at risk of getting damaged by kids playing in the area. when I opposed this they agreed to safeguard the area with playing net but havent taken any action. Now after 2 months they are telling me that they cannot do anything and I cannot complain because area outside my parking is not my space and I have no right to make objections to what happens outside. 3) They have also started harassing me when I complaint about anything in the society. Recently there was an unattended wooden box left outside my car park which I had to remove to be able to park my car and because it was dirty I used my feet to move it aside. I also uploaded the image on society complaint group on whatsapp to report and they started blaming me for kicking it and leaving it there. This is mental harassment and I am really depressed because of this unjust and hostile behaviour of the committee members. Please help me and suggest how can I get help with the issues above. Thanks in advance!