I can only try Tiny - this is the best I can come up with as to a meaning:
Shake my head, it's funny how people stand me up. Last night that was crazy though, but when I want to do something it's a joke to them. Shake my head. I'm done with people, I'm cutting people off, I am being for real this time. I don't care how people take it. Oh well, I don't care no more, shake my head.
Oddly I find the lack of punctuation harder to deal with that the words. I wouldn't even call that text speak other than the SMH for shake my head.
For laughs Tiny, this is another post from the same person - you have a go at translating it. The words in ( ) and not in bold is my censoring. Smh I like how ppl like to tlk made
(4 letter curse begins with s) on mee tho for real there can't sau it to ma face tho imm doen wot it.imm to old to b playin game.lil ass game wit this so imm going to to cut everbody off