Should I?

Should i do something with my hair?

its getting longer and the longer it gets...the worst it become....not to mention split end, tangled, and the worst..bad scalp problem...sigh..I change my shampoo alot of time..and spend alot of $ on hair product to
get it right, & what in return? NOTHING....! i think my hair hates me =(

Should i CHOP DOWN MY HAIR? STRAIGHTEN IT ?(Could help with scalp prob right? NO? what the heck it will my hair looks hella nicer) or just GO FOR HAIR TREATMENT?