OCD with Numbers..any treatment??

i just register to this forum after reading all these posts about obsession with counting numbers..going through the posts i realized that i have the same "symptoms" as most of the people..for example i like even numbers and i keep counting clocks and everything my eye catches....i even count the numbers of the serial codes in clothe's taggs and if i dont like the number i dont buy the clothe..that habbit really affect my everyday living because whenever i see a number i dont like i get upset and anxius..i know that the best way to help myself is by seeing a therapist but i cant afford one right now..does anyone have any useful advice how to avoid that habbit??

There are several self help books that are ERP based on the market. If you want recs for ones I particularly like, let me know.