None of us can say for sure if you have done any irreversible damage. My hunch is though, that you are going to be fine unless your binges were frequent and intense.
How many would you drink at one time and how rapidly?
Do you notice any difference in yourself now compared to before you began to drink? Do others notice any differences in you? Can you stop completely (weeks)without withdrawals?
See a doctor if you have any reason to think your capacities have changed.
Consider not drinking at all. If you do, they say men should have no more than two in one day and no more than one per hour and no more than 3 days a week. If this is a problem, then seek help.
Otherwise, unless you or others see impairments, I'm guessing you are going to be just fine. Congrats on seeing the dangers of alcohol much sooner than most of the others here. You've got your whole life ahead of you to live without the shackles of alcohol. Make it a great one...