not gonna last much longer

so im socially awkward and im losing friends left and right,, im probly gonna die in a few months when i save up for a gun ..i lods my girlfriend of three years had to move out of her place (now shes a heroine addict) i was recently told by a pscycologist from my town that i fit the symtoms of adhd innattentive…which makes so much sense but im 24 now i feel like my life is ruined..i cant pay attention in conversation so now i avoid everyone…im afraid the doctor will think that im just out for drugs to sell..this is my last shot before death