Stressful two day's til Christmas

So i have a son do everything to help him bought him a car in June same month he damaged the car by wrecking it in the ditch trying to harm a ex girlfriend i repaired the car told him to pay me for what i fixed which was going well i had to go to the hospital for a major surgery so i gave him his pay card and trusted that i would get the rest that did not happen i was giving him gas money everyday which when to his drinking and weed habit so he had nothing for gas so thats how that was happening and i told him i could do anything else for him now he cursed me out tell me he comes around because of my computer benefits him on getting him payed he comes and eat all of our food but has money then claim i have never been there for him ok people this has been going on for years with this boy and everytime i do more and more because i feel like i am not there enough so he uses that on me to take advantage and its sad i am now 34 years old he will be 20 in five months so im asking is it time for me to let him live and stop using me because this has been stressful im more like his sister and he talks to me like im a animal then im trying to conceive and i just don't need this stuff bring me down(learn more on Glow: https://glowing.com)