What all does infection do (from rotten wisdom teeth) if i periodically take antibiotics over the years?

The source of the: Infection remains - so you will likely continue to get infections.

Builds resistance: Prolonged antibiotic usage to try to control the infections related to your wisdom teeth is not a very wise treatment. The bacteria responsible for the infections can become resistant to the antibiotics, and you may have to have different antibiotics prescribed. The recommended treatment is to see your dentist and have the indicated teeth removed rather than prolonged antibiotic therapy.

Bad idea: You create a general resistance to the antibiotic so if you need it for some other infection it may not work and the bacteria causing the wisdom tooth infection will become resistant. Best idea is to treat the source of the infection. See your dentist and see if the tooth can be saved or if it needs to be removed for your sake and the sake of you other teeth.