Car will overheat and leak coolant and I'll fill it back up and it'll be fine

Hello, your question states that it leaks coolant. Do you see where it is leaking from? If you cannot find the leak, testing must be performed to find out where the leak is coming from. Or where the cooler is going. Indicating that there's a leak seems to say that there's something you are seeing. Is this the case? Replacing parts without confirming a failure doesn't make sense. Take the time to seek where the coolant is going, or get some help from a shop near you. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops