2 young 2 cope. please help!

where the hell do i start! im 21, well iv been seeing me girlfreind whos 20 for 4 and half years. she finished me 3 weeks ago, with arguing 2 much. its been goin on for 2 months argueing coz me mam and me other problems hav got 2 much 4 me, and we ended splitting wit me. 1 of the reasons is iv been havin big arguements wit gf is me mam. iv had them wit gf everything is getting 2much 4 me. iv lived with me mam all me life and she has found a new guy she really likes nd wants 2 get a house wit him nd leave the council house 2 me so i can get a morgage on it. she sees him constantly. iv went thro life wit just me nd her nd now its changed im not use 2 it, nd i dont like him. iv also doin a found degree aswell at college nd thats hard. everythin has effected me so much i cry all the time. 1 time a week ago i broke down playing football on a sunday its effected everythin, my work my football on a sat nd sunday wit me friends,college. i also just had 2weeks on the sick at work wit depression. iv been 2 see the doctor aswell. stupid things just run thro ya head nd fucks ya up so much ya break down nd cry. me and me mam hav been arguing 4 at least 3 months then me gf finishes me 3 weeks ago its just the icening on the cake. i dont no what 2 do? im at that point where things like whats the point ov workin or living or speakin 2 ppl it just stress me out. i no it probly sounds like nowt but iv went thro life ok nd its just hit me really bad. im confussed. please help if want send 2 me email [email protected] please leave your email so i cud contact u and here what else u could say. thanks