should i even bother testing ?

i feel like its pointless to test , ive been trying for 2 years now, 1 false positive and no luck... my last attempt was november 29th, high fertility , 5 days till ovulation. so its been about 3 weeks, and my period is estimated to start in 3 days.

they are always irregular so im not sure if its a positive period start date.

i am so tired of getting so excited and then instantly disappointed. half of the time i dont even tell my SO that ive tested because i dont want to get him discouraged. when will it be my turn?