I have been disrespected

I'm am not sure I can write this and make any sense because I am so hurt and upset and it is just been a very hard day. I have been the head of grounds in the co-op that we live at for about eleven or more years, and for the past four years I have been the person who mows all the common area with the ride on mower, now I have to back step a bit,  before I started to do the job of mowing the co-op paid another guy who lived here for doing the job of mowing and he also weeded all the common area and the co-op paid him $65.00 each time. Now back to me because my arms are not strong enough I did not do the weeding with the gas weed eater but I did mow all of the common area and I charged $40.00 a complete mow, I have done this for the last three years and now the co-op has decided not to pay me after this years contract is up, they want me to train three people to help do the mowing so they don't have to pay me. I feel like I have been slapped in the face and basically told I am unworthy of a lousy $40.00 dollars a mow, that all the hard work I have put into it for all these years making sure to have the grounds looking the best, going out to mow with heatstroke late in the day just to not get behind in the work means shit. They say that no one will get paid anymore for the work around the co-op that it all has to be volunteered because that is part of living in a co-op and I am not saying I don't agree with that but mowing is not the only job that I do extra for the co-op, every spring I prune 5 plumb tree's all my own, I also every spring take all the garden equipement out of the shed and prepare everything for the members to use and make sure everything is neat and tidy. We have some cherry tree's that always have a bunch of suckers that spring up every year and I alone go and cut all these down and clean it all up, this year I have been having some health issues so I asked for help to clear out the suckers, I waited two and half weeks for someone to go and do some of the work and no one did shit, so I had to go and cut it all down myself so the neighbors on the other side of the fence would stop complaining to me, I also clean up the berm area along our main road every year mostly to make it easier for me to get around the tree's and don't have to duck under branches when I mow and all this I do by myself every year and it means shit. So I have retired from it all I will no longer be clearing up anything and after I show the other three people how to drive the mower I will be quiting that also, I am done with not being valued as a person. The money I made from mowing the season which adds up to $300.00 a season I have never charged more than that, I used to help with extra grocery's, pet food and gives me a little money to spend at the dollar store, now that won't be happening and I am so damn hurt about it I haven't been able to stop crying all day. I will get passed this I know I will it will just take some time but next spring when all this extra work is not getting done by me I can't wait to see and hear them all complain and I am going to shove it right back into there faces. My home was always a place I felt proud to live at and now it's just a place I have to live at cause we can't afford to move