"I replaced my alternator a month ago" is more a statement not a question. if you are now having problems describe the situation for the question otherwise no one could really help that is like throwing darts blindfolded after someone spun you around. Do you have same problems? are they different problems? All in all you need to put down a lot more info for someone to help you out

Take your car back to the parts store and have them check the alternator before you disassemble. If it is bad, they should replace it under warranty.

Never buy electrical parts at a box store if you're having low voltage (under 13.5 volts) problems at the battery terminals with the engine running.

I did my own oil change

good for you

Well done.

The "Pat on the head" website is this way>>>>>>>>>>>>

where do these idiots come from?